Scholars@Duke
Werner Tornow

Werner Tornow

Professor Emeritus of Physics
Physics
werner.tornow@duke.edu
Box 90308, Durham, NC 27708-0308
414 TUNL, Durham, NC 27708

Selected Publications

Search for Majorana Neutrinos with the Complete KamLAND-Zen Dataset

Journal Article Physical Review Letters · December 31, 2025 We present a search for neutrinoless double-beta (0νββ) decay of Xe136 using the full KamLAND-Zen 800 dataset with 745 kg of enriched xenon, corresponding to an exposure of 2.1 ton yr of Xe136. This updated search benefits from a more than twofold increase ... Full text Cite

Measurement of magnetic dipole strength in 40Ar between 9.3 and 10.3 MeV excitation energy and impact on neutral current neutrino interaction

Journal Article Physical Review C · November 24, 2025 The magnetic dipole strength B(M1↑) of 40Ar was measured in the excitation energy range between 9.3 and 10.3 MeV. The nuclear resonance fluorescence technique was used with monoenergetic, linearly polarized incident photon beams. The new data in ... Full text Cite

182W(n, 2n) 181W cross-section data from threshold to 15 MeV

Journal Article Physical Review C · July 14, 2025 Measurements of the 182W(n, 2n) 181Wcross section have been performed in the neutron energy range between 8 and 15 MeV using the activation technique. Such data are needed to help interpret results of laser shots at the National Ignit ... Full text Cite

Energy dependence of chain fission product yields from neutron-induced fission of 235U, 238U, and 239Pu

Journal Article Nuclear Data Sheets · June 1, 2025 The lack of completeness and systematic studies of cumulative fission product yield (FPY) from the three major actinides of 235U, 238U, and 239Pu, over a broad energy range, was the primary motivation for the LLNL-LANL-TUNL ... Full text Cite

Modern version of the uncited 1938 experiment that first observed DT fusion

Journal Article Physical Review C · June 1, 2025 Experiments are described, and results are provided, for the duplication of the first-ever triton-deuterium (colloquially referred to as DT) fusion experiment accidentally performed by A. J. Ruhlig in 1938, but forgotten in the published scientific literat ... Full text Cite

Limits on the Low-energy Electron Antineutrino Flux from the Brightest Gamma-Ray Burst of All Time

Journal Article Astrophysical Journal · March 10, 2025 The electron antineutrino flux limits are presented for the brightest gamma-ray burst (GRB) of all time, GRB221009A, over a range of 1.8-200 MeV using the Kamioka Liquid Scintillator Antineutrino Detector. Using multiple time windows ranging from minutes t ... Full text Cite

Gamma Decay of the ^{154}Sm Isovector Giant Dipole Resonance: Smekal-Raman Scattering as a Novel Probe of Nuclear Ground-State Deformation.

Journal Article Physical review letters · January 2025 γ decays of the isovector giant dipole resonance (IVGDR) of the deformed nucleus ^{154}Sm were measured using 2_{1}^{+}-Smekal-Raman and elastic scattering of linearly polarized, quasimonochromatic photon beams. The two scattering processes were disentangl ... Full text Cite

Trithiol ligand provides tumor-targeting 191Pt-complexes with high molar activity and promising in vivo properties.

Journal Article Nucl Med Biol · 2025 PURPOSE: The Auger electron-emitting radionuclide 191Pt is a promising candidate for radiopharmaceutical therapy. Herein, we explored novel labeling methods for 191Pt using thiol-containing ligands to improve the in vivo stability and targeting ability of ... Full text Link to item Cite

Combined Pre-supernova Alert System with KamLAND and Super-Kamiokande

Journal Article Astrophysical Journal · October 1, 2024 Preceding a core-collapse supernova (CCSN), various processes produce an increasing amount of neutrinos of all flavors characterized by mounting energies from the interior of massive stars. Among them, the electron antineutrinos are potentially detectable ... Full text Cite

Search for charged excited states of dark matter with KamLAND-Zen

Journal Article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · August 1, 2024 Particle dark matter could belong to a multiplet that includes an electrically charged state. WIMP dark matter (χ0) accompanied by a negatively charged excited state (χ−) with a small mass difference (e.g. < 20 MeV) can form a bound-s ... Full text Cite

Transition width of the Jπ=1- two-phonon state of Sr 88

Journal Article Physical Review C · August 1, 2024 The ground-state decay width of the two-phonon Jπ=1-, 4742 keV state of Sr88 has been determined with the relative self-absorption method combined with a monoenergetic photon beam. This width is important to determine the decay transition strengths into th ... Full text Cite

Measurement of Neutron Recoil Polarization in Deuteron Photodisintegration

Conference Proceedings of Science · July 30, 2024 An experiment at the High Intensity Gamma Source (HIGS) at the Triangle University Nuclear Laboratory (TUNL) was recently performed to measure the polarization of recoiling neutrons from photodisintegration of deuterium nuclei. As the simplest, multi-body ... Cite

Characterization of 235U, 238U and 239Pu fission ionization chamber foils by α and γ-ray spectrometry

Journal Article Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment · June 1, 2024 The masses of thin, electroplated deposits of 235U, 238U and 239Pu on titanium backings have been determined to better than 1.3% precision by employing three complementary measurement techniques: α spectrometry, 2π gas coun ... Full text Cite

Energy dependence of fission product yields in the second-chance fission region

Journal Article Physical Review C · April 1, 2024 An extensive dataset of cumulative fission product yields has been generated under a joint collaboration between Los Alamos National Laboratory (LANL), Lawrence Livermore National Laboratory (LLNL), and the Triangle Universities Nuclear Laboratory (TUNL). ... Full text Cite

Low-lying dipole response of Ni 64

Journal Article Physical Review C · April 1, 2024 Two complementary real-photon scattering experiments were conducted on the proton-magic Ni64 nucleus to study the dipole response up to its neutron-separation energy of Sn=9.7MeV. By combining both measurements, 87 E1 and 23 M1 transitions were identified ... Full text Cite

From precision nuclear structure information to constraining statistical properties: Methodical developments in photonuclear reactions

Journal Article Nuovo Cimento Della Societa Italiana Di Fisica C · March 1, 2024 We report on a new method to perform nuclear self-absorption measurements in combination with a monochromatic photon beam produced via laser Compton backscattering. We have used the method for two very different applications: The precision determination of ... Full text Cite

Observation of d(t,n)α Neutrons Following d(d,p)t Reactions in a Deuterium Gas Cell: An Attempt to Repeat Ruhlig’s 1938 Observation of Secondary Reactions

Journal Article Fusion Science and Technology · January 1, 2024 In order to benchmark methods used to calculate reaction-in-flight fusion reactions in inertial confinement fusion and address issues related to the first claimed observation of d(t,n)α reactions in 1938, secondary d(t,n)α reactions have been observed foll ... Full text Cite

Photo-response of the N= Z nucleus 24 Mg

Journal Article European Physical Journal A · September 1, 2023 The electric E1 and magnetic M1 dipole responses of the N= Z nucleus 24 Mg were investigated in an inelastic photon scattering experiment. The 13.0 MeV electrons, which were used to produce the unpolarised bremsstrahlung in the entrance channel ... Full text Cite

Observation of Low-Lying Isomeric States in ^{136}Cs: A New Avenue for Dark Matter and Solar Neutrino Detection in Xenon Detectors.

Journal Article Physical review letters · August 2023 We report on new measurements establishing the existence of low-lying isomeric states in ^{136}Cs using γ rays produced in ^{136}Xe(p,n)^{136}Cs reactions. Two states with O(100)  ns lifetimes are placed in the decay sequence of the ^{136}Cs levels that ar ... Full text Cite

Testing shell-model interactions at high excitation energy and low spin: Nuclear resonance fluorescence in Ge 74

Journal Article Physical Review C · August 1, 2023 With their complex low-spin structure, the germanium isotopes have accrued a large number of experimental data which challenge nuclear models. The structure of the Ge74 isotope is investigated here with nuclear resonance fluorescence as part of an extensiv ... Full text Cite

Cross section for inelastic neutron scattering from 193Ir at 6 MeV.

Journal Article Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine · May 2023 Two samples, one of natural iridium and the other of enriched 193Ir, were irradiated with a monoenergetic neutron beam of energy 6.0 MeV at the Triangle Universities Nuclear Laboratory. The product of the 193Ir [Formula: see text] Ir ... Full text Cite

Fission product yields from the U 238 (n,f) reaction at En=4.6 MeV

Journal Article Physical Review C · May 1, 2023 We present cumulative fission product yields from the U238(n,f) reaction at an incident energy of 4.6 MeV for fission products with half-lives from less than one second to several hours. We employed direct γ-ray spectroscopy to measure unseparated fission ... Full text Cite

Measurement of cosmic-ray muon spallation products in a xenon-loaded liquid scintillator with KamLAND

Journal Article Physical Review C · May 1, 2023 Cosmic-ray muons produce various radioisotopes when passing through material. These spallation products can be backgrounds for rare event searches such as in solar neutrino, double-β decay, and dark matter search experiments. The KamLAND-Zen experiment sea ... Full text Cite

First measurement of the strange axial coupling constant using neutral-current quasielastic interactions of atmospheric neutrinos at KamLAND

Journal Article Physical Review D · April 1, 2023 We report a measurement of the strange axial coupling constant gAs using atmospheric neutrino data at KamLAND. This constant is a component of the axial form factor of the neutral-current quasielastic (NCQE) interaction. The value of gAs significantly chan ... Full text Cite

Erratum: Monoenergetic photon-induced fission cross-section ratio measurements for U 235, U 238, and Pu 239 from 9.0 to 17.0 MeV (Physical Review C (2018) 98 (014608) DOI: 10.1103/PhysRevC.98.014608)

Journal Article Physical Review C · March 1, 2023 Background: High-accuracy data are needed to advance microscopic descriptions of the nuclear fission process, to improve the predictive precision of phenomenological models, and for applications in nuclear energy and homeland security. Purpose: The main go ... Full text Cite

Search for the Majorana Nature of Neutrinos in the Inverted Mass Ordering Region with KamLAND-Zen.

Journal Article Physical review letters · February 2023 The KamLAND-Zen experiment has provided stringent constraints on the neutrinoless double-beta (0νββ) decay half-life in ^{136}Xe using a xenon-loaded liquid scintillator. We report an improved search using an upgraded detector with almost double the amount ... Full text Cite

Energy-Dependent Fission-Product Yields in the Region of Second-Chance Fission

Conference 16th Varenna Conference on Nuclear Reaction Mechanisms Nrm2023 · January 1, 2023 The energy dependence of high-yield fission products has been measured using quasi-monoenergetic neutron beams at energies between 5.5 and 11.0 MeV. The absolute number of fissions during the irradiation period was determined via dual-fission ionization ch ... Full text Cite

Neutrinoless Double Beta Decay

Preprint · December 21, 2022 Link to item Cite

Measurement of the S01 neutron-neutron effective range in neutron-deuteron breakup

Journal Article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · December 10, 2022 We report the most precise determination of the S01 neutron-neutron effective range parameter (rnn) from neutron-neutron quasifree scattering in neutron-deuteron breakup. The experiment setup utilized a collimated beam of 15.5 MeV neutrons and a ... Full text Cite

Neutral-current neutrino cross section and expected supernova signals for 40Ar from a three-fold increase in the magnetic dipole strength

Journal Article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · December 10, 2022 In view of the great interest in liquid argon neutrino detectors, the 40Ar(γ,γ′)40Ar reaction was revisited to guide a calculation of the neutral current neutrino cross section at supernova energies. Using the nuclear reson ... Full text Cite

KamLAND's search for correlated low-energy electron antineutrinos with astrophysical neutrinos from IceCube

Journal Article Astroparticle Physics · October 1, 2022 We report the results of a search for MeV-scale astrophysical neutrinos in KamLAND presented as an excess in the number of coincident neutrino interactions associated with the publicly available high-energy neutrino datasets from the IceCube Neutrino Obser ... Full text Cite

Model-independent determination of the dipole response of Zn 66 using quasimonoenergetic and linearly polarized photon beams

Journal Article Physical Review C · October 1, 2022 Background: Photon strength functions are an important ingredient in calculations relevant for the nucleosynthesis of heavy elements. The relation to the photoabsorption cross section allows to experimentally constrain photon strength functions by investig ... Full text Cite

Abundances of Uranium and Thorium Elements in Earth Estimated by Geoneutrino Spectroscopy

Journal Article Geophysical Research Letters · August 28, 2022 The decay of the primordial isotopes 238U, 235U, 232Th, and 40K has contributed to the terrestrial heat budget throughout the Earth's history. Hence, the individual abundance of those isotopes are key parameters ... Full text Cite

Search for Supernova Neutrinos and Constraint on the Galactic Star Formation Rate with the KamLAND Data

Journal Article Astrophysical Journal · July 1, 2022 We present the results of a search for core-collapse supernova neutrinos, using long-term KamLAND data from 2002 March 9 to 2020 April 25. We focus on the electron antineutrinos emitted from supernovae in the energy range of 1.8-111 MeV. Supernovae will ma ... Full text Cite

Low-energy astrophysics with KamLAND

Conference Proceedings of Science · March 18, 2022 We present two results of a search for MeV-scale neutrino and anti-neutrino events correlated with gravitational wave events/candidates and large solar flares with KamLAND. The KamLAND detector is a large-volume neutrino detector using liquid scintillator, ... Cite

A Search for Correlated Low-energy Electron Antineutrinos in KamLAND with Gamma-Ray Bursts

Journal Article Astrophysical Journal · March 1, 2022 We present the results of a time-coincident event search for low-energy electron antineutrinos in the KamLAND detector with gamma-ray bursts (GRBs) from the Gamma-ray Coordinates Network and Fermi Gamma-ray Burst Monitor. Using a variable coincidence time ... Full text Cite

Development of a rapid-transit system for precision nuclear physics measurements

Journal Article Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment · February 11, 2022 A Rapid Belt-driven Irradiated Target Transfer System, named RABITTS, was developed for use at the Triangle Universities Nuclear Laboratory. This system allows for cyclic activation with neutron or photon beams, and measurement of reaction products using γ ... Full text Cite

Limits on Astrophysical Antineutrinos with the KamLAND Experiment

Journal Article Astrophysical Journal · January 20, 2022 We report on a search for electron antineutrinos ( ) from astrophysical sources in the neutrino energy range 8.3-30.8 MeV with the KamLAND detector. In an exposure of 6.72 kton-year of the liquid scintillator, we observe 18 candidate events via the inverse ... Full text Cite

Search for Solar Flare Neutrinos with the KamLAND Detector

Journal Article Astrophysical Journal · January 10, 2022 We report the result of a search for neutrinos in coincidence with solar flares from the GOES flare database. The search was performed on a 10.8 kton-year exposure of KamLAND collected from 2002 to 2019. This large exposure allows us to explore previously ... Full text Cite

International Workshop on Next Generation Gamma-Ray Source

Journal Article Journal of Physics G: Nuclear and Particle Physics · December 2, 2021 Link to item Cite

Majorana parameters of the interacting boson model of nuclear structure and their implication for 0νββ decay

Journal Article Physical Review C · December 1, 2021 The well-known spherical-deformed-transitional nucleus and potential 0νββemitter Nd150and its daughter Sm150were investigated in nuclear resonance fluorescence experiments using quasimonoenergetic, linearly polarized γ-ray beams. For both nuclei transition ... Full text Cite

Structure of high-lying levels populated in the 96Y →96Zr β decay

Journal Article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · September 10, 2021 The nature of the high-lying final levels of the 96Ygs β decay, one of the three most important contributors to the high-energy reactor antineutrino spectrum, has been investigated in high-resolution γ-ray spectroscopy following the β ... Full text Cite

The nylon balloon for xenon loaded liquid scintillator in KamLAND-Zen 800 neutrinoless double-beta decay search experiment

Journal Article Journal of Instrumentation · August 1, 2021 The KamLAND-Zen 800 experiment is searching for the neutrinoless double-beta decay of 136Xe by using 136Xe-loaded liquid scintillator. The liquid scintillator is enclosed inside a balloon made of thin, transparent, low-radioactivity film that we call Inner ... Full text Cite

E2 decay characteristics of the M1 scissors mode of Sm 152

Journal Article Physical Review C · May 1, 2021 The E2/M1 multipole mixing ratio of the 1sc+→21+γ-ray transition and therefore the F-vector E2 decay of the scissors mode of the shape-phase transitional nucleus Sm152 have been measured with the nuclear resonance fluorescence method at the High-Intensity ... Full text Cite

Tm 169 (n,2n) Tm 168 and Tm 169 (n,3n) Tm 167 cross-section measurements from 15 to 21 MeV

Journal Article Physical Review C · April 1, 2021 The Tm169(n,2n)Tm168 and Tm169(n,3n)Tm167 cross sections have been measured in the neutron energy range between 15 and 21 MeV using the H3(d,n)He4 neutron source reaction. The Tm169(n,3n)Tm167 data are intended to provide an accurate database for interpret ... Full text Cite

Dipole response in Te 128,130 below the neutron threshold

Journal Article Physical Review C · April 1, 2021 Background: Numerous studies of the ground-state decay of the pygmy dipole resonance (PDR) have been carried out in the past. However, data on the decay of the PDR to low-lying excited states is still very scarce due to limitations of the sensitivity to we ... Full text Cite

Potential neutron-induced γ -ray background on natural tellurium relevant to Te 130 0νββ decay searches at the CUORE and SNO+ detectors

Journal Article Physical Review C · April 1, 2021 Gamma-ray production cross-section data have been obtained for the inelastic neutron scattering reactions Te126,128,130(n,n′γ) at five neutron energies between 3.6 and 10 MeV. We report data for the γ-ray energy region relevant to 0νββ decay of Te130 with ... Full text Cite

Search for Low-energy Electron Antineutrinos in KamLAND Associated with Gravitational Wave Events

Journal Article Astrophysical Journal · March 10, 2021 We present the results of a search for MeV-scale electron antineutrino events in KamLAND coincident with the 60 gravitational wave events/candidates reported by the LIGO/Virgo collaboration during their second and third observing runs. We find no significa ... Full text Cite

Measurements of Short-Lived Isomers from Photofission as a Method of Active Interrogation for Special Nuclear Materials

Journal Article Physical Review Applied · March 1, 2021 Isomeric fission products, such as 134mTe (T1/2=164 ns) and 136mXe (T1/2=2.95μs), are proposed as a signature of special nuclear materials in active interrogation applications. To test this conjecture, monoenergetic 9, 11, and 13 MeV photons from the HIγS ... Full text Cite

Electric and magnetic dipole strength in Zn 66

Journal Article Physical Review C · February 1, 2021 The dipole strength of the nuclide Zn66 was studied in photon-scattering experiments using bremsstrahlung produced with electron beams of energies of 7.5 and 13.4 MeV at the γELBE facility as well as using quasimonoenergetic and linearly polarized photon b ... Full text Cite

Dipole response of Rb 87 and its impact on the Rb 86 (n,γ) Rb 87 cross section

Journal Article Physical Review C · October 27, 2020 Background: Detailed information on the low-lying dipole response in atomic nuclei along isotonic or isotopic chains is well suited to systematically investigate the structure and evolution of the pygmy dipole resonance (PDR). Moreover, the dipole strength ... Full text Cite

Photo response of Dy 164

Journal Article Physical Review C · September 1, 2020 Background: Little data is available for the pygmy dipole resonance (PDR) in axially deformed nuclei. Photon-scattering experiments are complicated by high level densities in the PDR region and the small energy difference of transitions to the ground state ... Full text Cite

ΔK=0 M1 Excitation Strength of the Well-Deformed Nucleus ^{164}Dy from K Mixing.

Journal Article Physical review letters · August 2020 The size of a ΔK=0 M1 excitation strength has been determined for the first time in a predominantly axially deformed even-even nucleus. It has been obtained from the observation of a rare K-mixing situation between two close-lying J^{π}=1^{+} states of the ... Full text Cite

Electric and magnetic dipole strength in Fe 54

Journal Article Physical Review C · June 1, 2020 The dipole strength of the N=28 closed-shell nuclide Fe54 was studied in photon-scattering experiments using bremsstrahlung produced with electron beams of kinetic energies of 7.5 and 13.9 MeV at the γELBE facility as well as using quasimonoenergetic and l ... Full text Cite

Firm spin and parity assignments for high-lying, low-spin levels in stable Si isotopes

Journal Article European Physical Journal A · April 1, 2020 A natural silicon target was investigated in a natSi(γ, γ′) photon-scattering experiment with fully linearly-polarised, quasi-monochromatic γ rays in the entrance channel. The mean photon energies used were ⟨ Eγ⟩ = 9.33, 9. ... Full text Cite

Neutron-neutron quasifree scattering in neutron-deuteron breakup at 10 MeV

Journal Article Physical Review C · March 1, 2020 New measurements of the neutron-neutron quasifree scattering cross section in neutron-deuteron breakup at an incident neutron energy of 10.0 MeV are reported. The experiment setup was optimized to evaluate the technique for determining the integrated beam- ... Full text Cite

Low-Energy QCD Research at TUNL

Conference Springer Proceedings in Physics · January 1, 2020 Experiments are underway at the Triangle Universities Nuclear Laboratory (TUNL) that provide data for evaluating calculations based on low-energy QCD theories, e.g., effective field theory formulations of two-nucleon and three-nucleon interactions, chiral- ... Full text Cite

Fission Product Yield Measurements from Neutron-Induced Fission of 235,238 U and 239Pu

Conference EPJ Web of Conferences · 2020 Fission product yields (FPY) are one of the most fundamental quantities that can be measured for a fissioning nucleus and are important for basic and applied nuclear physics. Recent measurements using mono-energetic and pulsed neutron beams generat ... Full text Cite

Toward short-lived and energy-dependent fission product yields from neutron-induced fission

Conference EPJ Web of Conferences · 2020 Fission product yields (FPYs) are an important source of information that are used for basic and applied physics. They are essential observables to address questions relevant to nucleosynthesis in the cosmos that created the elements from iron to u ... Full text Cite

Validating the Bohr hypothesis: Comparing fission-product yields from photon-induced fission of 240Pu and neutron-induced fission of Pu

Conference EPJ Web of Conferences · 2020 The Bohr hypothesis, one of the most fundamental assumptions in nuclear fission theory, states that the decay of a compound nucleus with a given excitation energy, spin and parity is independent of its formation. Using fission product yields (FPYs) ... Full text Cite

Experimental M1 response of Ar 40 as a benchmark for neutrino-nucleus scattering calculations

Journal Article Physical Review C · September 9, 2019 The excitation of atomic nuclei via magnetic dipole transitions is closely related to the inelastic neutral-current neutrino-nucleus (NC-νA) scattering process due to the similarity of the transition operators. NC-νA-scattering serves for the detection of ... Full text Cite

Valence-shell dependence of the pygmy dipole resonance: E1 strength difference in Cr 50,54

Journal Article Physical Review C · August 5, 2019 Background: The low-lying electric dipole strength provides insights into the parameters of the nuclear equation of state via its connection with the pygmy dipole resonance and nuclear neutron skin thickness. Purpose: The aim was to complement the systemat ... Full text Cite

Fission product yield measurements using monoenergetic photon beams

Journal Article Physical Review C · July 19, 2019 Background: High-accuracy and self-consistent fission product yield (FPY) data are needed to advance microscopic/macroscopic descriptions of the nuclear fission process, to improve the predictive power of phenomenological models, and for applications in nu ... Full text Cite

Low-lying dipole strength in the well-deformed nucleus 156 Gd

Journal Article Nuclear Physics A · July 1, 2019 The low-lying dipole strength of the deformed nucleus 156 Gd was investigated in the energy region from 3.1 MeV to 6.2 MeV using the method of nuclear resonance fluorescence (NRF). The NRF experiments were performed at the Darmstadt High Intensi ... Full text Cite

Precision Analysis of the ^{136}Xe Two-Neutrino ββ Spectrum in KamLAND-Zen and Its Impact on the Quenching of Nuclear Matrix Elements.

Journal Article Physical review letters · May 2019 We present a precision analysis of the ^{136}Xe two-neutrino ββ electron spectrum above 0.8 MeV, based on high-statistics data obtained with the KamLAND-Zen experiment. An improved formalism for the two-neutrino ββ rate allows us to measure the ratio of th ... Full text Cite

The concept of nuclear photon strength functions: A model-independent approach via (γ→,γ′γ″) reactions

Journal Article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · January 10, 2019 Most theoretical approaches used in nuclear astrophysics to model the nucleosynthesis of heavy elements incorporate the so-called statistical model in order to describe the excitation and decay properties of atomic nuclei. One of the basic assumptions of t ... Full text Cite

Investigation of the Pygmy dipole resonance across the shell closure in chromium isotopes

Conference Springer Proceedings in Physics · January 1, 2019 For several nuclei in the vicinity of shell closures an accumulation of electric dipole strength around the particle separation threshold has been reported. This strength accumulation is often referred to as pygmy dipole resonance (PDR). As part of the sys ... Full text Cite

Measurement of the in 115 (γ,γ′) in 115m inelastic scattering cross section in the 1.8 to 3.7 MeV energy range with monoenergetic photon beams MEASUREMENT of the in 115 (γ, ... W. TORNOW et al.

Journal Article Physical Review C · December 6, 2018 For the first time the excitation cross section of In115 to its first excited state at 336.24 keV has been measured with monoenergetic photon beams at 15 energies between 1.8 and 3.7 MeV. The measurements were performed at the High-Intensity Gamma-ray Sour ... Full text Cite

Measurement of the Se 80 (γ,n) reaction with linearly polarized γ rays

Journal Article Physical Review C · November 30, 2018 This paper reports the results of the first measurements of the differential cross section of the Se80(γ,n)Se79 reaction with a linearly polarized gamma-ray (γ-ray) beam. The cross section was measured at three incident γ-ray beam energies: 15.6, 15.8, and ... Full text Cite

Nuclear structure of 82Kr and 82Se relevant for neutrinoless double-beta decay

Conference EPJ Web of Conferences · November 14, 2018 Nuclear Resonance Fluorescence (NRF) experiments on the nuclei 82Kr and 82Se were performed, that are a candidates for a mother-daughter pair for the hypothetical neutrinoless double-beta (0νββ) decay. The experiment aimed at providing high-precision data ... Full text Cite

Partial cross section of neutron-induced reactions on 136Xe at e n = 5 MeV for 0νββ background studies

Journal Article Journal of Physics G Nuclear and Particle Physics · November 12, 2018 Partial cross section measurements were carried out on 136Xe at Triangle Universities Nuclear Laboratory (TUNL) using 5 MeV monoenergetic neutrons. These results are important for estimating potential neutron-induced backgrounds in the nEXO and ... Full text Cite

First limit on neutrinoless quadruple β decay of Nd 150 to the 01+ state of Gd 150

Journal Article Physical Review C · November 9, 2018 Background: Observation of lepton number violation via detection of neutrinoless double β decay requires that the neutrino be a Majorana particle. If the neutrino is a Dirac particle, a potential lepton-number violating process is neutrinoless quadruple β ... Full text Cite

Astrophysical relevance of the low-energy dipole strength of 206Pb

Conference EPJ Web of Conferences · May 16, 2018 The dipole strength of 206Pb was studied below the neutron separation energy using photon scattering experiments at the HIGS facility. Utilizing the technique of nuclear resonance fluorescence with 100% linearly-polarized photon beams, the spins ... Full text Cite

Cross-section measurements of the 94Mo(γ,n) and 90Zr(γ,n) reactions using real photons at the HI γ S facility

Conference EPJ Web of Conferences · May 16, 2018 The photodisintegration reaction cross-sections for 94Mo(γ,n) and 90Zr(γ,n) have been experimentally investigated with quasi-monochromatic photon beams at the High Intensity γ-Ray Source (HIγS) facility, Triangle University Nuclear La ... Full text Cite

Probing the E2 properties of the scissors mode with real photons

Conference EPJ Web of Conferences · May 16, 2018 The E2/M1 multipole mixing ratio δ1→2 of the 1+sc → 2+1 γ-ray transition of 156Gd and 164Dy has been measured using the linearly polarized photon beams of the HIγS facility. The ... Full text Cite

Search for Neutrinoless Double-β Decay in ^{76}Ge with the Majorana Demonstrator.

Journal Article Physical review letters · March 2018 The Majorana Collaboration is operating an array of high purity Ge detectors to search for neutrinoless double-β decay in ^{76}Ge. The Majorana Demonstrator comprises 44.1 kg of Ge detectors (29.7 kg enriched in ^{76}Ge) split between two modules contained ... Full text Cite

Investigation of the γ-decay behavior of 52Cr with the γ 3 setup at HIγS

Conference Journal of Physics Conference Series · February 22, 2018 The γ-ray strength function is an important input parameter for the calculation of nucleosynthesis processes. To study the dipole response in more detail, the γ-decay behavior of the fp shell nucleus 52Cr was investigated with the high-efficienc ... Full text Cite

Shape mixing in 0νββ candidates

Conference Journal of Physics: Conference Series · 2018 Cite

Kamland-zen

Conference Neutrino 2018 28th International Conference on Neutrino Physics and Astrophysics Conference Proceedings · January 1, 2018 Cite

Pygmy and core polarization dipole modes in 206Pb: Connecting nuclear structure to stellar nucleosynthesis

Journal Article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · October 10, 2017 A high-resolution study of the electromagnetic response of 206Pb below the neutron separation energy is performed using a γ→,γ′) experiment at the HIγ→S facility. Nuclear resonance fluorescence with 100% linearly polarized photon beam ... Full text Cite

Capture cross sections on unstable nuclei

Conference EPJ Web of Conferences · September 13, 2017 Accurate neutron-capture cross sections on unstable nuclei near the line of beta stability are crucial for understanding the s-process nucleosynthesis. However, neutron-capture cross sections for short-lived radionuclides are difficult to measure due to th ... Full text Cite

E1 and M1 strength functions at low energy

Conference EPJ Web of Conferences · September 13, 2017 We report photon-scattering experiments using bremsstrahlung at the γELBE facility of Helmholtz-Zentrum Dresden-Rossendorf and using quasi-monoenergetic, polarized γ beams at the HIγS facility of the Triangle Universities Nuclear Laboratory in Durham. To d ... Full text Cite

E2 decay strength of the M1 scissors mode of ^{156}Gd and its first excited rotational state.

Journal Article Physical review letters · May 2017 The E2/M1 multipole mixing ratio δ_{1→2} of the 1_{sc}^{+}→2_{1}^{+} γ-ray decay in ^{156}Gd and hence the isovector E2 transition rate of the scissors mode of a well-deformed rotational nucleus has been measured for the first time. It has been obtained fr ... Full text Cite

Neutron capture cross-section measurements for $\^$$238$$ $ U between 0.4 and 1.4 MeV

Journal Article Bulletin of the American Physical Society · 2017 Cite

Photofission cross-section ratio measurement of 235 U/238 U using monoenergetic photons in the energy range of 9.0–16.6 MeV

Journal Article Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment · 2017 Cite

Dipole response of the odd-proton nucleus 205Tl up to the neutron-separation energy

Journal Article Journal of Physics G Nuclear and Particle Physics · October 17, 2016 The low-lying electromagnetic dipole strength of the odd-proton nuclide 205Tl has been investigated up to the neutron separation energy exploiting the method of nuclear resonance fluorescence. In total, 61 levels of 205Tl have been id ... Full text Cite

A SEARCH for ELECTRON ANTINEUTRINOS ASSOCIATED with GRAVITATIONAL-WAVE EVENTS GW150914 and GW151226 USING KAMLAND

Journal Article Astrophysical Journal Letters · October 1, 2016 We present a search, using KamLAND, a kiloton-scale anti-neutrino detector, for low-energy anti-neutrino events that were coincident with the gravitational-wave (GW) events GW150914 and GW151226, and the candidate event LVT151012. We find no inverse beta-d ... Full text Cite

Publisher's Note: Search for Majorana Neutrinos Near the Inverted Mass Hierarchy Region with KamLAND-Zen [Phys. Rev. Lett. 117, 082503 (2016)].

Journal Article Physical review letters · September 2016 This corrects the article DOI: 10.1103/PhysRevLett.117.082503. ... Full text Cite

Search for Majorana Neutrinos Near the Inverted Mass Hierarchy Region with KamLAND-Zen.

Journal Article Physical review letters · August 2016 We present an improved search for neutrinoless double-beta (0νββ) decay of ^{136}Xe in the KamLAND-Zen experiment. Owing to purification of the xenon-loaded liquid scintillator, we achieved a significant reduction of the ^{110m}Ag contaminant identified in ... Full text Cite

The decay pattern of the Pygmy Dipole Resonance of 140Ce

Journal Article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · May 10, 2016 The decay properties of the Pygmy Dipole Resonance (PDR) have been investigated in the semi-magic N=82 nucleus 140Ce using a novel combination of nuclear resonance fluorescence and γ-γ coincidence techniques. Branching ratios for transitions to ... Full text Cite

Design of an Experiment to Measure ann Using 3 H (γ, pn) n at HIγS

Conference EPJ Web of Conferences · March 25, 2016 We provide an update on the development of an experiment at TUNL for determining the 1S0 neutron-neutron (nn) scattering length (ann) from differential cross-section measurements of three-body photodisintegration of the tri ... Full text Cite

Monte-Carlo Simulation of 3H(γ, pn) n and 3He(γ, pp) n Experiments at HI γs

Conference EPJ Web of Conferences · March 25, 2016 We are developing an experiment to measure the two and three-body (γ, p) differential cross sections (DCS) for 3H and 3He. These data will be used to determine the 1S0 nn scattering length (ann) and np ... Full text Cite

Neutron-neutron quasifree scattering in nd breakup at 10 MeV

Conference EPJ Web of Conferences · March 25, 2016 The neutron-deuteron (nd) breakup reaction provides a rich environment for testing theoretical models of the neutron-neutron (nn) interaction. Current theoretical predictions based on rigorous ab-initio calculations agree well with most experimental data f ... Full text Cite

Few-Nucleon Research at TUNL: Probing Two- and Three-Nucleon Interactions with Neutrons

Conference EPJ Web of Conferences · March 25, 2016 The central goal of few-nucleon research at the Triangle Universities Nuclear Laboratory (TUNL) is to perform measurements that contribute to advancing ab-initio calculations of nuclear structure and reactions. The program aims include evaluating theoretic ... Full text Cite

Decay of quadrupole-octupole 1-states in Ca 40 and Ce 140

Journal Article Physical Review C · March 10, 2016 Background: Two-phonon excitations originating from the coupling of two collective one-phonon states are of great interest in nuclear structure physics. One possibility to generate low-lying E1 excitations is the coupling of quadrupole and octupole phonons ... Full text Cite

KamLAND SENSITIVITY TO NEUTRINOS FROM PRE-SUPERNOVA STARS

Journal Article Astrophysical Journal · February 10, 2016 In the late stages of nuclear burning for massive stars (M > 8 Mȯ), the production of neutrino-antineutrino pairs through various processes becomes the dominant stellar cooling mechanism. As the star evolves, the energy of these neutrinos increa ... Full text Cite

Search for double-beta decay of 136Xe to excited states of 136Ba with the KamLAND-Zen experiment

Journal Article Nuclear Physics A · February 1, 2016 A search for double-beta decays of 136Xe to excited states of 136Ba has been performed with the first phase data set of the KamLAND-Zen experiment. The 01+, 21+ and 22+ ... Full text Cite

Search for the β decay of 96Zr

Journal Article Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment · January 11, 2016 96Zr and 48Ca are unique among double-β decay candidate nuclides in that they may also undergo single-β decay. In the case of 96Zr, the single-β decay mode is dominated by the fourth-forbidden β decay with a 119 keV Q value ... Full text Cite

Investigation of the Photon Strength Function in 130 Te

Conference Journal of Physics Conference Series · January 5, 2016 The dipole strength distribution of 130Te was investigated with the method of Nuclear Resonance Fluorescence using continuous-energy bremsstrahlung at the Darmstadt High Intensity Photon Setup and quasi-monoenergetic photons at the High Intensit ... Full text Cite

Magnetic dipole excitations of Cr 50

Journal Article Physical Review C · 2016 Cite

Nuclear Resonance Fluorescence off 54Cr: The Onset of the Pygmy Dipole Resonance

Conference Journal of Physics: Conference Series · 2016 Cite

The majorana demonstrator search for neutrinoless double beta decay

Conference Proceedings of Science · January 1, 2016 The MAJORANA Collaboration is constructing the MAJORANA DEMONSTRATOR, an ultra-low background, modular, HPGe detector array with a mass of 44.8-kg (29.7 kg enriched -88% in 76Ge) to search for neutrinoless double beta decay in 76Ge. The next generation of ... Cite

Search for neutrinoless double-electron capture of Dy 156

Journal Article Physical Review C Nuclear Physics · December 31, 2015 Background: Multiple large collaborations are currently searching for neutrinoless double-β decay, with the ultimate goal of differentiating the Majorana-Dirac nature of the neutrino. Purpose: Investigate the feasibility of resonant neutrinoless double-ele ... Full text Cite

Be 7 solar neutrino measurement with KamLAND

Journal Article Physical Review C Nuclear Physics · November 30, 2015 We report a measurement of the neutrino-electron elastic scattering rate of 862 keV Be7 solar neutrinos based on a 165.4 kt d exposure of KamLAND. The observed rate is 582±94(kt d)-1, which corresponds to an 862-keV Be7 solar neutrino flux of (3.26±0.52)×1 ... Full text Cite

Quadrupole decay strength of the M 1 scissors mode

Conference Aip Conference Proceedings · October 15, 2015 The E2/M1 multipole mixing ratio δ1→2 of the 1sc+→21+ transition of Gd was determined using results from high-statistics photon scattering. This provides a possibility for a new approach on the search of Jsc+ members of the rotational band built ... Full text Cite

Search for two-neutrino double- β decay of Zr 96 to excited states of Mo 96

Journal Article Physical Review C Nuclear Physics · October 8, 2015 Background: Double-β decay is a rare second-order nuclear decay. The importance of this decay stems from the possibility of neutrinoless double-β decay and its applications to neutrino physics. Purpose: A search was conducted for the 2νββ decay of Zr96 to ... Full text Cite

Search for the proton decay mode p → ν ¯ K+ with KamLAND SEARCH for the PROTON DECAY MODE ⋯ K. ASAKURA et al

Journal Article Physical Review D Particles Fields Gravitation and Cosmology · September 23, 2015 We present a search for the proton decay mode p→ν¯K+ based on an exposure of 8.97 kton-years in the KamLAND experiment. The liquid scintillator detector is sensitive to successive signals from p→ν¯K+ with unique kinematics, which allow us to achieve a dete ... Full text Cite

Neutron-deuteron analyzing power data at En = 21 MeV and the energy dependence of the three-nucleon analyzing power puzzle

Journal Article Journal of Physics G Nuclear and Particle Physics · August 1, 2015 We present measurements of n-d analyzing power, , at En = 21.0 MeV. The experiment produces neutrons via the 2H(, )3He reaction and uses a deuterated liquid-scintillator center detector and six pairs of liquid-scintillator ... Full text Cite

Results from KamLAND-Zen

Conference Aip Conference Proceedings · July 15, 2015 KamLAND-Zen reports on a preliminary search for neutrinoless double-beta decay with 136Xe based on 114.8 live-days after the purification of the xenon loaded liquid scintillator. In this data, the problematic 110mAg background peak id ... Full text Cite

STUDY of ELECTRON ANTI-NEUTRINOS ASSOCIATED with GAMMA-RAY BURSTS USING KamLAND

Journal Article Astrophysical Journal · June 10, 2015 We search for electron anti-neutrinos (ne) from long-and short-duration gamma-ray bursts (GRBs) using data taken by the Kamioka Liquid Scintillator Anti-Neutrino Detector (KamLAND) from 2002 August to 2013 June. No statistically significant exce ... Full text Cite

Exploratory study of fission product yields of neutron-induced fission of U 235, U 238, and Pu 239 at 8.9 MeV EXPLORATORY STUDY of FISSION PRODUCT YIELDS ... C. BHATIA et al.

Journal Article Physical Review C Nuclear Physics · June 5, 2015 Using dual-fission chambers each loaded with a thick (200-400-mg/cm2) actinide target of 235,238U or Pu239 and two thin (∼10-100-μg/cm2) reference foils of the same actinide, the cumulative yields of fission products ranging from Sr92 to Nd147 have been me ... Full text Cite

Nuclear structure studies with gamma-ray beams

Conference EPJ Web of Conferences · May 28, 2015 In stable and weakly bound neutron-rich nuclei, a resonance-like concentration of dipole states has been observed for excitation energies below the neutron-separation energy. This clustering of strong dipole states has been named the Pygmy Dipole Resonance ... Full text Cite

124Xe(n,γ)125Xe and 124Xe(n,2n)123Xe measurements for National Ignition Facility

Conference EPJ Web of Conferences · May 28, 2015 The cross section for the 124Xe(n,γ)125Xe reaction has been measured for the first time for neutron energies above 100 keV. In addition, the 124Xe(n,2n)123Xe reaction has been studied between threshold and 14.8 M ... Full text Cite

Neutron radiative capture reactions on nuclei of relevance to 0νββ, dark matter and neutrino/antineutrino searches

Conference EPJ Web of Conferences · May 28, 2015 A program is underway at the Triangle Universities Nuclear Laboratory (TUNL) to measure the neutron capture cross section in the 0.5 to 15 MeV energy range on nuclei whose radioactive daughters could potentially create backgrounds in searches for rare even ... Full text Cite

Decay pattern of the pygmy dipole resonance in 140Ce

Conference EPJ Web of Conferences · May 28, 2015 The decay behavior of low-lying dipole states in 140Ce was investigated exploiting the γ3-setup at the HIγS facility using quasi-monochromatic photon beams. Branching ratios of individual excited states as well as average branching ratios to low ... Full text Cite

Dipole strength distributions from HIGS Experiments

Conference EPJ Web of Conferences · May 28, 2015 A series of photon scattering experiments has been performed on the double-beta decay partners 76Ge and 76Se, in order to investigate their dipole response up to the neutron separation threshold. Gamma-ray beams from bremsstrahlung at ... Full text Cite

QPM analysis of 205TI nuclear excitations below the giant dipole resonance

Conference EPJ Web of Conferences · May 28, 2015 We analysed our experimental recent findings of the dipole response of the odd-mass stable nucleus 205Tl within the quasi-particle phonon model. Using the phonon basis constructed for the neighbouring 204Hg and wave function configura ... Full text Cite

The majorana parts tracking database

Journal Article Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment · April 11, 2015 The Majorana Demonstrator is an ultra-low background physics experiment searching for the neutrinoless double beta decay of 76Ge. The Majorana Parts Tracking Database is used to record the history of components used in the construction of the De ... Full text Cite

Separation of the 1+/1- parity doublet in 20Ne

Journal Article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · February 4, 2015 The (J, T)=(1, 1) parity doublet in 20Ne at 11.26 MeV is a good candidate to study parity violation in nuclei. However, its energy splitting is known with insufficient accuracy for quantitative estimates of parity violating effects. To improve o ... Full text Cite

Comprehensive sets of Xe 124 (n,γ) Xe 125 and Xe 124 (n,2n) Xe 123 cross-section data for assessment of inertial-confinement deuterium-tritium fusion plasma

Journal Article Physical Review C Nuclear Physics · January 7, 2015 Measurements of the neutron radiative-capture cross section of Xe124 have been performed for the first time for neutron energies above 100 keV. In addition, data for the Xe124(n,2n)Xe123 reaction cross section have been obtained from threshold to 14.8 MeV ... Full text Cite

Laboratory studies on the removal of radon-born lead from KamLAND's organic liquid scintillator

Journal Article Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment · January 1, 2015 The removal of radioactivity from liquid scintillator has been studied in preparation of a low background phase of KamLAND. This paper describes the methods and techniques developed to measure and efficiently extract radon decay products from liquid scinti ... Full text Cite

Testing the Ge Detectors for the MAJORANA DEMONSTRATOR

Journal Article Physics Procedia · January 1, 2015 High purity germanium (HPGe) crystals will be used for the MAJORANA DEMONSTRATOR, where they serve as both the source and the detector for neutrinoless double beta decay. It is crucial for the experiment to understand the performance of the HPGe crystals. ... Full text Cite

Background Model for the Majorana Demonstrator

Journal Article Physics Procedia · January 1, 2015 The Majorana Collaboration is constructing a system containing 40 kg of HPGe detectors to demonstrate the feasibility and potential of a future tonne-scale experiment capable of probing the neutrino mass scale in the inverted-hierarchy region. To realize t ... Full text Cite

A compact ultra-clean system for deploying radioactive sources inside the KamLAND detector

Journal Article Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment · January 1, 2015 We describe a compact, ultra-clean device used to deploy radioactive sources along the vertical axis of the KamLAND liquid-scintillator neutrino detector for purposes of calibration. The device worked by paying out and reeling in precise lengths of a hangi ... Full text Cite

A Dark Matter Search with MALBEK

Journal Article Physics Procedia · January 1, 2015 The Majorana Demonstrator is an array of natural and enriched high purity germanium detectors that will search for the neutrinoless double-beta decay of 76Ge and perform a search for weakly interacting massive particles (WIMPs) with masses below ... Full text Cite

Results from KamLAND-Zen

Conference XXVI INTERNATIONAL CONFERENCE ON NEUTRINO PHYSICS AND ASTROPHYSICS (NEUTRINO 2014) · January 1, 2015 Full text Link to item Cite

The MAJORANA DEMONSTRATOR for 0νββ: Current Status and Future Plans

Conference Physics Procedia · January 1, 2015 The MAJORANA DEMONSTRATOR will search for neutrinoless-double-beta decay (0νββ) in 76Ge, while establishing the feasibility of a future tonne-scale germanium-based 0νββ experiment, and performing searches for new physics beyond the Standard Model. The expe ... Full text Cite

The Majorana Low-noise Low-background Front-end Electronics

Conference Physics Procedia · January 1, 2015 The MAJORANA DEMONSTRATOR will search for the neutrinoless double beta decay (ββ(0ν)) of the isotope 76Ge with a mixed array of enriched and natural germanium detectors. In view of the next generation of tonne-scale germanium-based ββ(0ν)-decay ... Full text Cite

Magnetic dipole strength in Xe 128 and Xe 134 in the spin-flip resonance region

Journal Article Physical Review C Nuclear Physics · November 10, 2014 The magnetic dipole strength in the energy region of the spin-flip resonance is investigated in Xe128 and Xe134 using quasimonoenergetic and linearly polarized γ-ray beams at the High-Intensity γ-Ray Source facility in Durham, North Carolina, USA. Absorpti ... Full text Cite

Measurements of the 40Ar(n, γ)41Ar radiative-capture cross section between 0.4 and 14.8 MeV

Journal Article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · September 7, 2014 The 40Ar(n, γ)41Ar neutron capture cross section has been measured between 0.4 and 14.8 MeV neutron energy using the activation technique. The data are important for estimating backgrounds in argon-based neutrino and dark-matter detec ... Full text Cite

Dual-fission chamber and neutron beam characterization for fission product yield measurements using monoenergetic neutrons

Journal Article Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment · September 1, 2014 A program has been initiated to measure the energy dependence of selected high-yield fission products used in the analysis of nuclear test data. We present out initial work of neutron activation using a dual-fission chamber with quasi-monoenergetic neutron ... Full text Cite

Photoneutron strengths in 26Mg at energies of astrophysical interest

Journal Article Physical Review C Nuclear Physics · May 23, 2014 Background: The 22Ne(α,n)25Mg reaction is an important source of neutrons for s-process nucleosynthesis. The neutron production from the reaction is quite sensitive to the low-energy cross section, which is dominated by narrow resonances. The high level de ... Full text Cite

Neutron-deuteron analyzing power data at En=22.5 MeV

Conference Physical Review C Nuclear Physics · May 12, 2014 We present measurements of n-d analyzing power, Ay(θ), at En=22.5 MeV. The experiment uses a shielded neutron source which produced polarized neutrons via the 2H(d - ,n - )3He reaction. It also uses a deuterated liquid-scintillator center detector and six ... Full text Cite

Decay pattern of the pygmy dipole resonance in 130Te

Conference EPJ Web of Conferences · April 14, 2014 The electric dipole strength distribution in 130Te has been investigated using the method of Nuclear Resonance Fluorescence. The experiments were performed at the Darmstadt High Intensity Photon Setup using bremsstrahlung as photon source and at ... Full text Cite

Isospin properties of electric dipole excitations in 48Ca

Journal Article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · March 7, 2014 Two different experimental approaches were combined to study the electric dipole strength in the doubly-magic nucleus 48Ca below the neutron threshold. Real-photon scattering experiments using bremsstrahlung up to 9.9 MeV and nearly mono-energet ... Full text Cite

Determination of the Ce 142 (,n) cross section using quasi-monoenergetic Compton backscattered rays

Journal Article Physical Review C Nuclear Physics · March 7, 2014 Background: Knowing the energy dependence of the (,n) cross section is mandatory to predict the abundances of heavy elements using astrophysical models. The data can be applied directly or used to constrain the cross section of the inverse (n,) reaction. P ... Full text Cite

Photoexcitation of the stable tl isotopes below the neutron separation energy

Conference Acta Physica Polonica B · February 1, 2014 Although the systematics of the Pygmy Dipole Resonance was established in several stable even-even nuclei, the collectivity of this mode, explained in a macroscopic picture as an oscillation of a neutron skin against an isospin symmetric proton-neutron cor ... Full text Cite

Status of the Majorana Demonstrator experiment

Journal Article Aip Conference Proceedings · January 1, 2014 The Majorana Demonstrator neutrinoless double beta-decay experiment is currently under construction at the Sanford Underground Research Facility in South Dakota, USA. An overview and status of the experiment are given. © 2014 AIP Publishing LLC. ... Full text Cite

Recent Experiments Involving Few-Nucleon Systems

Journal Article Few-Body Systems · 2014 Cite

The Majorana Demonstrator neutrinoless double-beta decay experiment

Journal Article Advances in High Energy Physics · January 1, 2014 The Majorana Demonstrator will search for the neutrinoless double-beta (β β 0 ) decay of the isotope Ge with a mixed array of enriched and natural germanium detectors. The observation of this rare decay would indicate that the neutrino is its own antiparti ... Full text Cite

The Majorana Demonstrator: A search for neutrinoless double-beta decay of germanium-76

Conference Aip Conference Proceedings · January 1, 2014 The Majorana collaboration is searching for neutrinoless double beta decay using 76Ge, which has been shown to have a number of advantages in terms of sensitivities and backgrounds. The observation of neutrinoless double-beta decay would show that lepton n ... Full text Cite

Recent Experiments Involving Few-Nucleon Systems

Journal Article Few Body Systems · January 1, 2014 Recent experimental results are presented for reactions involving A = 3 to A = 6 nuclear systems. The emphasis is on unique data obtained at new experimental facilities. It is shown that the inertial confinement fusion facilities OMEGA and NIF provide a la ... Full text Cite

News on the scissors mode

Conference Journal of Physics Conference Series · January 1, 2014 We report on our recent nuclear resonance fluorescence experiments on l52,l54,l56Gd. Decay branches of the scissors mode to intrinsic excitations are observed. They are interpreted as a new signature for a spherical-to-deformed nuclear shape pha ... Full text Cite

Search for neutrinoless double-beta decay

Journal Article 34th International Symposium on Physics in Collision, PIC 2014 · January 1, 2014 © Symposium on Physics in Collision, PIC 2014.All right reserved. After the pioneering work of the Heidelberg-Moscow (HDM) and International Germanium Experiment (IGEX) groups, the second round of neutrinoless double-β decay searches currently underway has ... Cite

Polarized photon scattering of $\^$$52$$ $ Cr: Determining the parity of dipole states

Journal Article Bulletin of the American Physical Society · 2014 Cite

Search for neutrinoless double-beta decay

Conference 34th International Symposium on Physics in Collision Pic 2014 · January 1, 2014 After the pioneering work of the Heidelberg-Moscow (HDM) and International Germanium Experiment (IGEX) groups, the second round of neutrinoless double-β decay searches currently underway has or will im- prove the life-time limits of double-β decay candidat ... Cite

The Majorana Demonstrator: Progress towards showing the feasibility of a tonne-scale 76Ge neutrinoless double-beta decay experiment

Journal Article Journal of Physics Conference Series · January 1, 2014 The Majorana Demonstrator will search for the neutrinoless double-beta decay (0vββ) of the 76Ge isotope with a mixed array of enriched and natural germanium detectors. The observation of this rare decay would indicate the neutrino is its own ant ... Full text Cite

A segmented, enriched N-type germanium detector for neutrinoless double beta-decay experiments

Journal Article Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment · January 1, 2014 We present data characterizing the performance of the first segmented, N-type Ge detector, isotopically enriched to 85% 76Ge. This detector, based on the Ortec PT6×2 design and referred to as SEGA (Segmented, Enriched Germanium Assembly), was de ... Full text Open Access Cite

Constraining nuclear photon strength functions by the decay properties of photo-excited states

Journal Article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · December 18, 2013 A new approach for constraining the low-energy part of the electric dipole Photon Strength Function (E1-PSF) is presented. Experiments at the Darmstadt High-Intensity Photon Setup and the High Intensity γ→-Ray Source have been performed to investigate the ... Full text Cite

Dipole response of 76Se above 4 MeV

Journal Article Physical Review C Nuclear Physics · December 6, 2013 The dipole response of 3476Se in the energy range from 4 to 9 MeV has been analyzed using a (γâ-, γ′) polarized photon scattering technique, performed at the High Intensity γ-Ray Source facility at Triangle Universities Nuclear Laboratory, to co ... Full text Cite

Nuclear deformation and neutron excess as competing effects for pygmy dipole strength

Journal Article · November 8, 2013 The electromagnetic dipole strength below the neutron-separation energy has been studied for the xenon isotopes with mass numbers A = 124, 128, 132, and 134 in nuclear resonance fluorescence experiments using the ELBE bremsstrahlung facility at Helmholtz-Z ... Link to item Cite

Low-lying dipole strength of the open-shell nucleus 94Mo

Journal Article Physical Review C Nuclear Physics · October 29, 2013 The low-lying dipole strength of the open-shell nucleus 94Mo was studied via the nuclear resonance fluorescence technique up to 8.7 MeV excitation energy at the bremsstrahlung facility at the Superconducting Darmstadt Electron Linear Accelerator (S-DALINAC ... Full text Cite

Photoresponse of 60Ni below 10-MeV excitation energy: Evolution of dipole resonances in fp-shell nuclei near N=Z

Journal Article Physical Review C Nuclear Physics · October 7, 2013 Background: Within the last decade, below the giant dipole resonance the existence of a concentration of additional electric dipole strength has been established. This accumulation of low-lying E1 strength is commonly referred to as pygmy dipole resonance ... Full text Cite

Cross-section measurements of the 86Kr(γ,n) reaction to probe the s-process branching at 85Kr.

Journal Article Physical review letters · September 2013 We have carried out photodisintegration cross-section measurements on 86Kr using monoenergetic photon beams ranging from the neutron separation energy, S(n) = 9.86  MeV, to 13 MeV. We combine our experimental 86Kr(γ,n)85Kr cross section with results from o ... Full text Cite

The {\sc Majorana Demonstrator} Neutrinoless Double-Beta Decay Experiment

Journal Article · August 7, 2013 The {\sc Majorana Demonstrator will search for the neutrinoless double-beta decay of the isotope Ge-76 with a mixed array of enriched and natural germanium detectors. The observation of this rare decay would indicate the neutrino is its own antiparticle, d ... Link to item Cite

Reactor on-off antineutrino measurement with KamLAND

Journal Article Physical Review D Particles Fields Gravitation and Cosmology · August 2, 2013 The recent long-term shutdown of Japanese nuclear reactors has resulted in a significantly reduced reactor ν̄e flux at KamLAND. This running condition provides a unique opportunity to confirm and constrain backgrounds for the reactor ν̄e Full text Cite

Analyzing Power of 3He(n, n)3He Between 1.60 and 5.54 MeV

Conference Few Body Systems · August 1, 2013 We report the measurements of the analyzing power Ay(θ) of n-3He elastic scattering with unprecedented accuracy and angular coverage at five incident neutron energies between 1.60 and 5.54 MeV. To this end, we employed the polarizatio ... Full text Cite

The high-efficiency γ-ray spectroscopy setup γ 3 at HIγS

Journal Article Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment · June 17, 2013 The existing Nuclear Resonance Fluorescence (NRF) setup at the HIγS facility at the Triangle Universities Nuclear Laboratory at Duke University has been extended in order to perform γ-γ coincidence experiments. The new setup combines large volume LaBr ... Full text Cite

Measurement of the 64Zn(n,2n)63Zn reaction cross section between 12.5 and 14.5 MeV

Journal Article Journal of Physics G Nuclear and Particle Physics · June 1, 2013 Using the activation technique, the cross section for the reaction 64Zn(n,2n)63Zn was measured from 12.5 to 14.5 MeV in 250 keV energy steps to resolve inconsistencies in the existing database, which are reflected in the up to 40% dif ... Full text Cite

Measurement of the elastic scattering cross section of neutrons from argon and neon

Journal Article Physical Review C Nuclear Physics · May 21, 2013 Background: The most significant source of background in direct dark matter searches are neutrons that scatter elastically from nuclei in the detector's sensitive volume. Experimental data for the elastic scattering cross section of neutrons from argon and ... Full text Cite

Decay pattern of the pygmy dipole resonance in 60Ni

Journal Article Physical Review C Nuclear Physics · May 15, 2013 Spin-1 states in 60Ni were excited with the (γâ -, γ′) reaction, exploiting the High Intensity γâ - -ray Source at Triangle University Nuclear Laboratory. This facility is capable of providing fully linearly polarized, quasimonochromatic, Compto ... Full text Cite

Analyzing power Ay(θ) of n-3He elastic scattering between 1.60 and 5.54 MeV.

Journal Article Physical review letters · April 2013 Comprehensive and high-accuracy n-3He elastic scattering analyzing power Ay(θ) angular distributions were obtained at five incident neutron energies between 1.60 and 5.54 MeV. The data are compared to rigorous four-nucleon calculations using high-precision ... Full text Cite

Ground-state and isomeric-state cross sections for 181Ta(n,2n)180Ta between 8 and 15 MeV

Journal Article Physical Review C Nuclear Physics · March 21, 2013 Using the activation technique, the cross section for the reaction 181Ta(n,2n)180Tag was measured from 8 to 15 MeV in small energy steps to resolve inconsistencies in the existing database. The 93.4 keV γ ray from the decay of the 180Tag ground state was r ... Full text Cite

Characteristics of signals originating near the lithium-diffused N+ contact of high purity germanium p-type point contact detectors

Journal Article Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment · February 11, 2013 A study of signals originating near the lithium-diffused n+ contact of p-type point contact (PPC) high purity germanium detectors (HPGe) is presented. The transition region between the active germanium and the fully dead layer of the n+ contact is examined ... Full text Cite

Pygmy dipole strength in 86Kr and systematics of N=50 isotones

Journal Article Physical Review C Nuclear Physics · February 8, 2013 The dipole strength of the N=50 nucleus 86Kr was studied in photon-scattering experiments using bremsstrahlung produced with electron beams of energies of 7.9 and 11.2 MeV delivered by the linear accelerator ELBE as well as using quasimonoenergetic and lin ... Full text Cite

Limit on neutrinoless ββ decay of 136Xe from the first phase of KamLAND-Zen and comparison with the positive claim in 76Ge.

Journal Article Physical review letters · February 2013 We present results from the first phase of the KamLAND-Zen double-beta decay experiment, corresponding to an exposure of 89.5 kg yr of (136)Xe. We obtain a lower limit for the neutrinoless double-beta decay half-life of T(1/2)(0ν)>1.9×10(25) yr at 90% C.L. ... Full text Cite

136Xe(n,2n)135Xe cross section between 9 and 15 MeV

Journal Article Physical Review C Nuclear Physics · January 22, 2013 The cross section of the reaction 136Xe(n,2n)135Xe to both the ground state and the 526.6 keV isomeric states of 135Xe was measured between 9.0 and 14.9 MeV. These data are important to guide evaluations and theoretical calculations aimed at estimating the ... Full text Cite

The Majorana double beta decay experiment: Present status

Conference Proceedings of the 15th Lomonosov Conference on Elementary Particle Physics Particle Physics at the Tercentenary of Mikhail Lomonosov · January 1, 2013 The Majorana collaboration is actively pursuing research and development aimed at a tonne-scale 76Ge neutrinoless double-beta decay (0νββ) experiment. The current, primary focus is the construction of the Majorana Demonstrator experiment, an R&D ... Full text Cite

Proposal for the Simultaneous Measurement of the Neutron-Neutron and Neutron-Proton Quasi-Free Scattering Cross Section via the Neutron-Deuteron Breakup Reaction at En = 19 MeV

Journal Article Few Body Systems · January 1, 2013 In order to confirm or refute the present discrepancy between data and calculation for the neutron-neutron quasi-free scattering cross section in the neutron-deuteron breakup reaction, we describe a new experimental approach currently being pursued at TUNL ... Full text Cite

MEASUREMENT OF FISSION PRODUCT YIELDS FROM FAST-NEUTRON-INDUCED FISSION

Conference FISSION AND PROPERTIES OF NEUTRON-RICH NUCLEI, ICFN5 · January 1, 2013 Link to item Cite

DIPOLE RESPONSE OF Se-76 UP TO 9 MeV

Conference CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS · January 1, 2013 Link to item Cite

THE MAJORANA DEMONSTRATOR: OVERVIEW AND STATUS UPDATE

Conference PROCEEDINGS OF THE SOUTH DAKOTA ACADEMY OF SCIENCE, VOL 92 · January 1, 2013 Link to item Cite

Fine structure of the giant M1 resonance in 90Zr.

Journal Article Physical review letters · January 2013 The M1 excitations in the nuclide 90Zr have been studied in a photon-scattering experiment with monoenergetic and linearly polarized beams from 7 to 11 MeV. More than 40 J(π)=1+ states have been identified from observed ground-state transitions, revealing ... Full text Cite

Constraining nuclear photon strength functions by the decay properties of photo-excited states

Journal Article Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics · 2013 Cite

Experiment on direct n-n scattering – the radiation-induced outgassing complication

Journal Article Nuclear Physics A · December 1, 2012 The first direct neutron-neutron scattering experiment using the YAGUAR pulsed reactor has yielded initial results. They show a unforeseen significant thermal neutron background as a result of radiation-induced desorption within the scattering chamber. The ... Full text Cite

40Ar(n,p)40Cl reaction cross section between 9 and 15 MeV

Journal Article Physical Review C Nuclear Physics · October 11, 2012 The activation technique was used to measure the cross section for the reaction 40Ar(n,p)40Cl in 0.5 MeV energy steps in the neutron energy range between 9 and 15 MeV. These data are important for estimating background contributions in neutrinoless double- ... Full text Cite

Neutron scattering from 28Si and 32S from 8.0 to 18.9 MeV, dispersive optical model analyses, and ground-state correlations

Journal Article Physical Review C Nuclear Physics · September 10, 2012 Background: The nucleon-nucleus dispersive optical model (DOM) has been successful in providing good fits to scattering data and in making valuable predictions for bound-state properties in single- and double-closed shell nuclei. However, the generalizabil ... Full text Cite

Limits on Majoron-emitting double-β decays of 136Xe in the KamLAND-Zen experiment

Journal Article Physical Review C Nuclear Physics · August 6, 2012 We present limits on Majoron-emitting neutrinoless double-β decay modes based on an exposure of 112.3 days with 125 kg of 136Xe. In particular, a lower limit on the ordinary (spectral index n=1) Majoron-emitting decay half-life of 136Xe is obtained as T1/2 ... Full text Cite

Electromagnetic dipole strength of 136Ba below the neutron separation energy

Journal Article Physical Review C Nuclear Physics · July 17, 2012 The electromagnetic dipole strength of the nucleus 136Ba has been investigated. Two measurements were performed with electron energies of 7.0 and 11.4 MeV at the bremsstrahlung facility at the ELBE accelerator of the Helmholtz-Zentrum Dresden-Rossendorf. P ... Full text Cite

Photodisintegration cross section of the reaction 4He(γ,n)3He at the giant dipole resonance peak

Journal Article Physical Review C Nuclear Physics · June 1, 2012 The photodisintegration cross section of 4He into a neutron and helion was measured at incident photon energies of 27.0, 27.5, and 28.0 MeV. A high-pressure 4He-Xe gas scintillator served as target and detector while a pure Xe gas scintillator was used for ... Full text Cite

The Majorana Demonstrator: A search for neutrinoless double-beta decay of germanium-76

Conference Aip Conference Proceedings · May 10, 2012 The observation of neutrinoless double-beta decay would determine whether the neutrino is a Majorana particle and provide information on the absolute scale of neutrino mass. The Majorana Collaboration is constructing the Demonstrator, an array of germanium ... Full text Cite

Measurement of the double-β decay half-life of 136Xe with the KamLAND-Zen experiment

Journal Article Physical Review C Nuclear Physics · April 19, 2012 We present results from the KamLAND-Zen double-beta decay experiment based on an exposure of 77.6 days with 129 kg of 136Xe. The measured two-neutrino double-beta decay half-life of 136Xe is T1/22ν=2.38±0.02(stat) ±0.14(syst)×1021 yr, consistent with a rec ... Full text Cite

Dipole response of 238U to polarized photons below the neutron separation energy

Journal Article Physical Review C Nuclear Physics · April 2, 2012 Nuclear resonance fluorescence experiments were carried out at the High-Intensity γ-ray Source facility at Triangle Universities Nuclear Laboratory to characterize the low-energy dipole structure of 238U using 100% linearly polarized photon beams from 2.0 ... Full text Cite

Search for extraterrestrial antineutrino sources with the KamLAND detector

Journal Article Astrophysical Journal · February 1, 2012 We present the results of a search for extraterrestrial electron antineutrinos (?e's) in the energy range 8.3MeV < E?e < 31.8MeV using the KamLAND detector. In an exposure of 4.53 kton-year, we identify 25 candidate events. All of the candidate events can ... Full text Cite

Photodisintegration cross section of the reaction (4)He(γ,p)(3)H between 22 and 30 MeV.

Journal Article Physical review letters · January 2012 The two-body photodisintegration cross section of (4)He into a proton and triton was measured with monoenergetic photon beams in 0.5 MeV energy steps between 22 and 30 MeV. High-pressure (4)He-Xe gas scintillators of various (4)He/Xe ratios served as targe ... Full text Cite

The Majorana Demonstrator: A Search for Neutrinoless Double-beta Decay of Germanium-76

Journal Article Journal of Physics Conference Series · January 1, 2012 The observation of neutrino less double-beta decay would show that neutrinos are Majorana particles and provide information on neutrino mass. Attaining sensitivities for neutrino masses in the inverted hierarchy region requires large, tonne scale detectors ... Full text Cite

The MAJORANA experiment: An ultra-low background search for neutrinoless double-beta decay

Journal Article Journal of Physics Conference Series · January 1, 2012 The observation of neutrinoless double-beta decay would resolve the Majorana nature of the neutrino and could provide information on the absolute scale of the neutrino mass. The initial phase of the MAJORANA experiment, known as the DEMONSTRATOR, will hous ... Full text Cite

Dark matter sensitivities of the Majorana Demonstrator

Conference Journal of Physics Conference Series · January 1, 2012 The Majorana Demonstrator is an array of natural and enriched high purity germanium detectors that will search for the neutrinoless double-beta decay of Germanium-76 and perform a search for weakly interacting massive particles with masses below 10 GeV. To ... Full text Cite

Energy separation of the 1+/1- parity doublet in 20Ne

Conference Journal of Physics Conference Series · January 1, 2012 The parity doublet of 1+/1- states of Ne-20 at 11.26 MeV excitation energy is one of the best known test cases to study the weak part of the nuclear Hamiltonian. The feasibility of parity violation experiments depend on the effective ... Full text Cite

Cross-section measurements of the 86Kr(γ, n) reaction to probe the s-process branching at 85Kr

Conference Journal of Physics Conference Series · January 1, 2012 For the first time, cross-section measurements were carried out for the 86Kr(γ, n) reaction in order to probe the s-process branching point nucleus 85Kr. The branching point nuclei in the s-process path are of importance in testing an ... Full text Cite

The Majorana experiment

Conference Aip Conference Proceedings · December 28, 2011 The Majorana collaboration is actively pursuing research and development aimed at a tonne-scale 76Ge neutrinoless double-beta decay (ββ(0μ)-decay) experiment. The current, primary focus is the construction of the Majorana Demonstrator experiment ... Full text Cite

The Majorana Experiment

Conference Nuclear Physics B Proceedings Supplements · December 1, 2011 Full text Cite

Astroparticle physics with a customized low-background broad energy Germanium detector

Journal Article Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment · October 1, 2011 The Majorana Collaboration is building the Majorana Demonstrator, a 60 kg array of high purity germanium detectors housed in an ultra-low background shield at the Sanford Underground Laboratory in Lead, SD. The Majorana Demonstrator will search for neutrin ... Full text Cite

Depth Requirements for a Tonne-scale 76Ge Neutrinoless Double-beta Decay Experiment

Journal Article · September 19, 2011 Neutrinoless double-beta decay experiments can potentially determine the Majorana or Dirac nature of the neutrino, and aid in understanding the neutrino absolute mass scale and hierarchy. Future 76Ge-based searches target a half-life sensitivity of >10^27 ... Link to item Cite

Measurement of the 8B solar neutrino flux with the KamLAND liquid scintillator detector

Journal Article Physical Review C Nuclear Physics · September 13, 2011 We report a measurement of the neutrino-electron elastic scattering rate from 8B solar neutrinos based on a 123 kton-day exposure of KamLAND. The background-subtracted electron recoil rate, above a 5.5-MeV analysis threshold is 1.49 ± 0.14(stat) ± 0.17(sys ... Full text Cite

Partial radiogenic heat model for Earth revealed by geoneutrino measurements

Journal Article Nature Geoscience · September 1, 2011 The Earth has cooled since its formation, yet the decay of radiogenic isotopes, and in particular uranium, thorium and potassium, in the planet's interior provides a continuing heat source. The current total heat flux from the Earth to space is 44.2± 1.0TW ... Full text Cite

Two-body photodisintegration of 3He between 7 and 16 MeV

Journal Article Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics · August 11, 2011 A comprehensive data set is reported for the two-body photodisintegration cross section of 3He using mono-energetic photon beams at eleven energies between 7.0 and 16.0 MeV. A He3+Xe high-pressure gas scintillator served as target and detector. Although ou ... Full text Cite

High-pressure 3He-Xe gas scintillators for simultaneous detection of neutrons and gamma rays over a large energy range

Journal Article Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment · August 11, 2011 We report on features of high-pressure 3HeXe gas scintillators which have not been sufficiently addressed in the past. Such gas scintillators can be used not only for the efficient detection of low-energy neutrons but at the same time for the de ... Full text Cite

The Majorana Experiment

Conference Nuclear Physics B Proceedings Supplements · August 1, 2011 The Majorana Collaboration is assembling an array of HPGe detectors to search for neutrinoless double-beta decay in 76Ge. Initially, Majorana aims to construct a prototype module to demonstrate the potential of a future 1-tonne experiment. The d ... Full text Cite

Experimental Study of Photon Induced Reactions on 3He and 4He at Low Energies

Conference Few Body Systems · May 1, 2011 Data are reported for the photodisintegration cross section of the reaction 3He(γ, p)2H at ten energies between 7.0 and 16.0 MeV. Very preliminary data are presented for the reaction 4He(γ, p)3H between 22.0 and ... Full text Cite

Cross-section measurements of neutron-induced reactions on GaAs using monoenergetic beams from 7.5 to 15 MeV

Journal Article Physical Review C Nuclear Physics · April 28, 2011 Cross-section measurements for neutron-induced reactions on GaAs have been carried out at twelve different neutron energies from 7.5 to 15 MeV using the activation technique. The monoenergetic neutron beams were produced via the H2(d,n)He3 reaction. GaAs s ... Full text Cite

Discrete deexcitations in U235 below 3 MeV from nuclear resonance fluorescence

Journal Article Physical Review C - Nuclear Physics · April 21, 2011 Gamma-ray transitions in U235 were measured using the (γ, γ') reaction below 3 MeV. The nuclear-resonance-fluorescence experiment was carried out at the High-Intensity γ-ray Source facility using nearly monoenergetic and circularly polarized photon beams. ... Full text Cite

Investigation of low-lying electric dipole strength in the semimagic nucleus Ca44

Journal Article Physical Review C - Nuclear Physics · March 7, 2011 The dipole-strength distribution in the semimagic nucleus Ca44 has been measured up to 10 MeV excitation energy in photon-scattering experiments using bremsstrahlung and monoenergetic 100% linearly polarized photon beams. The combination of both measuremen ... Full text Cite

Constraints on θ13 from a three-flavor oscillation analysis of reactor antineutrinos at KamLAND

Journal Article Physical Review D Particles Fields Gravitation and Cosmology · March 4, 2011 We present new constraints on the neutrino oscillation parameters Δm212, θ12, and θ13 from a three-flavor analysis of solar and KamLAND data. The KamLAND data set includes data acquired following a radiopurity upgrade and amounts to a ... Full text Cite

The majorana demonstrator

Conference Proceedings of the 2011 Meeting of the Division of Particles and Fields of the American Physical Society Dpf 2011 · January 1, 2011 A brief review of the history and neutrino physics of double beta decay is given. A description of the Majorana Demonstrator research and development program including background reduction techniques is presented in some detail. The application of point co ... Cite

Cross section measurements of neutron induced reactions on GaAs using monoenergetic beams from 7.5 to 15 MeV

Journal Article Journal of Physics Conference Series · January 1, 2011 Cross section measurements for the neutron induced reactions on GaAs have been carried out at ten different neutron energies from 7.5 to 15 MeV, using the activation technique. The monoenergetic neutron beams were produced via the 2H(d,n)3< ... Full text Cite

Direct measurement of n-n scattering – the gamma-ray induced outgassing complication

Journal Article Journal of Physics G: Nuclear Physics · 2011 Cite

The majorana demonstrator

Journal Article Proceedings of the 2011 Meeting of the Division of Particles and Fields of the American Physical Society, DPF 2011 · January 1, 2011 © Proceedings of the 2011 Meeting of the Division of Particles and Fields of the American Physical Society, DPF 2011. All rights reserved. A brief review of the history and neutrino physics of double beta decay is given. A description of the Majorana Demon ... Cite

Coarse and fine structure of the pygmy dipole resonance

Conference Journal of Physics Conference Series · January 1, 2011 High resolution and sensitivity studies of the nuclear dipole response in 138Ba have been performed in (γ, γ′) experiment. The electric dipole character of the "pygmy" mode was experimentally verified for excitations from 4.0 to 8.5 MeV. Experim ... Full text Cite

Fine structure of the giant M1 resonance in 90Zr

Conference Journal of Physics Conference Series · January 1, 2011 M1 excitations in the 90Zr nucleus have been studied in a photon-scattering experiment with monoenergetic and 100% linearly-polarized beams from 7 to 11 MeV. More than 40 Jπ = 1+ states were identified for the first time from the obse ... Full text Cite

Neutron production with a pyroelectric double-crystal assembly without nano-tip

Journal Article Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment · December 21, 2010 Two cylindrical LiTaO3 crystals facing each other's deuterated circular face were exposed to deuterium gas at an ambient pressure of a few mTorr. With a distance of about 4 cm between the z and z- cut crystal faces, neutrons were prod ... Full text Cite

Measurement of the Am241(γ,n)Am240 reaction in the giant dipole resonance region

Journal Article Physical Review C Nuclear Physics · November 30, 2010 The photodisintegration cross section of the radioactive nucleus Am 241 has been obtained using activation techniques and monoenergetic γ-ray beams from the HIγS facility. The induced activity of Am 240 produced via the Am241 Full text Cite

Determination of the proton and alpha-particle light-response functions for the KamLAND, BC-501A and BC-517H liquid scintillators

Journal Article Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment · November 21, 2010 A cylindrical 5.1 cm×5.1 cm scintillator cell filled with the KamLAND liquid scintillator has been exposed to monoenergetic neutron beams produced via the 2H(d,n)3He reaction to measure the proton light-response function for energies ... Full text Cite

Corrections for the polarization-dependent efficiency and new neutron-proton analyzing power data at 7.6 MeV

Journal Article Physical Review C Nuclear Physics · August 10, 2010 We present new corrections for the polarization-dependent efficiency (PDE), which introduces a false asymmetry into measurements of n-p analyzing power Ay(θ) caused by double scattering in the neutron side detectors. To accomplish this, we created a new da ... Full text Cite

Substantial increase in acceleration potential of pyroelectric crystals

Journal Article Journal of Applied Physics · April 14, 2010 We report on a substantial increase in the acceleration potential achieved with a LiTaO3 pyroelectric crystal. With a single 2.5 cm diameter and 2.5 cm long z-cut crystal without electric field-enhancing nanotip we produced positive ion beams wi ... Full text Open Access Cite

Improved results for the 2H(d, n)3He transverse vector polarization-transfer coefficient K′y at low energies

Journal Article Few Body Systems · April 1, 2010 Measurements of the 2H(d, n)3He transverse vector polarization-transfer coefficient Kyy′ at 0° are reported for 29 outgoing neutron energies between 3.94 and 8.47 MeV. Our new results determine Ky ... Full text Cite

Neutron-deuteron analyzing power data at 19.0 MeV

Journal Article Physical Review C Nuclear Physics · February 23, 2010 Measurements of neutron-deuteron (n-d) analyzing power Ay(θ) at En=19.0 MeV are reported at 16 angles from θc.m.=46.7 to 152.0°. The objective of the experiment is to better characterize the discrepancies between n-d data and the predictions of three-nucle ... Full text Open Access Cite

Spectral structure of the pygmy dipole resonance.

Journal Article Physical review letters · February 2010 High-sensitivity studies of E1 and M1 transitions observed in the reaction 138Ba(gamma,gamma{'}) at energies below the one-neutron separation energy have been performed using the nearly monoenergetic and 100% linearly polarized photon beams of the HIgammaS ... Full text Open Access Cite

Search for a bosonic component in the neutrino wave function

Journal Article Nuclear Physics A · January 1, 2010 Recently, Dolgov and Smirnov speculated that neutrinos may not obey the principle named after their inventor, the Pauli Principle. The neutrino wave function may contain a bosonic component. In principle, two-neutrino double-beta (2ν2β) decay data could be ... Full text Cite

Neutron-deuteron analyzing power at 19.0 MeV

Journal Article Phys. Rev. · 2010 Cite

The MAJORANA Project

Conference Journal of Physics Conference Series · January 1, 2010 The MAJORANA Project, a neutrinoless double-beta decay experiment is described with an emphasis on the choice of Ge-detector configuration. © 2010 IOP Publishing Ltd. ... Full text Cite

Spin and parity assignments to dipole excitations of the odd-mass nucleus 207Pb from nuclear resonance fluorescence experiments with linearly-polarized γ-ray beams

Conference Journal of Physics Conference Series · January 1, 2010 Pb(γ→,γ′) photon scattering reactions were studied [1] with the nearly monochromatic, linearly polarized photon beams at the High Intensity γ-ray Source (HIγS) at the DFELL. Azimuthal scattering intensity asymmetries measured with res ... Full text Cite

Basis for green energy multiplier*alternative nuclear technology (GEM*ART)

Journal Article Transactions of the American Nuclear Society · December 31, 2009 Cite

The MAJORANA DEMONSTRATOR: An R&D project towards a tonne-scale germanium neutrinoless double-beta decay search

Conference Aip Conference Proceedings · December 1, 2009 The MAJORANA collaboration is pursuing the development of the so-called MAJORANA DEMONSTRATOR. The DEMONSTRATOR is intended to perform research and development towards a tonne-scale germanium-based experiment to search for the neutrinoless double-beta deca ... Full text Cite

The KamLAND full-volume calibration system

Journal Article Journal of Instrumentation · November 16, 2009 We have successfully built and operated a source deployment system for the KamLAND detector. This system was used to position radioactive sources throughout the delicate 1-kton liquid scintillator volume, while meeting stringent material cleanliness, mater ... Full text Cite

Cross sections for U238(n,n'γ) and U238(n,2nγ) reactions at incident neutron energies between 5 and 14 MeV

Journal Article Physical Review C Nuclear Physics · August 6, 2009 Precision measurements of U238(n,n'γ) and U238(n,2nγ) partial cross sections have been performed at Triangle Universities Nuclear Laboratory (TUNL) to improve crucial data needed for testing nuclear reaction models in the actinide mass region. A pulsed and ... Full text Cite

Current status of the experiment on direct measurement of neutron-neutron scattering length at the reactor yaguar

Journal Article Aip Conference Proceedings · May 14, 2009 A new experiment was proposed in 2002 to perixirm the first direct measurement of neutron-neutron scattering on the powerful pulsed reactor YAGUAR located at Snezhinsk, Ural region, Russia. Extensive efforts were made to model the background conditions and ... Full text Cite

Photodisintegration cross section of241Am

Journal Article Aip Conference Proceedings · May 5, 2009 The photodisintegration cross section of radioactive 241Am has been obtained for the first time using monoenergetic γ-ray beams from the HIγS facility. The induced activity of240Am produced via the 241Am(γ,n) reaction in th ... Full text Cite

Dipole-strength distributions below the giant dipole resonance in the stable even-mass molybdenum isotopes

Conference Aip Conference Proceedings · May 5, 2009 Dipole-strength distributions in the stable even-mass molybdenum isotopes up to the neutron-separation energies have been studied in photon-scattering experiments with bremsstrahlung at the superconducting electron accelerator ELBE at the Research Center D ... Full text Cite

Recent results from the excitation of dipole states at the HlγS facility

Conference Aip Conference Proceedings · April 23, 2009 High-sensitivity studies of El and Ml excitations observed in the 138Ba(γ,γ') reaction at energies below the neutron emission threshold have been performed. The electric dipole character of the so-called "pygmy" mode was experimentally verified ... Full text Cite

New results for double-beta decay of 100Mo to excited final states of 100Ru using the TUNL-ITEP apparatus

Journal Article Nuclear Physics A · April 15, 2009 The coincidence detection efficiency of the TUNL-ITEP apparatus designed for measuring half-life times of two-neutrino double-beta (2 ν β β) decay transitions to excited final states in daughter nuclei has been measured with a factor of 2.4 improved accura ... Full text Cite

Neutron detection efficiency determinations for the TUNL neutron-neutron and neutron-proton scattering-length measurements

Journal Article Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment · February 11, 2009 The methods employed and the results obtained from measurements and calculations of the detection efficiency for the neutron detectors used at Triangle Universities Nuclear Laboratory (TUNL) in the simultaneous determination of the 1S0 Full text Cite

Neutrons from a proton-driven deuterium target as a possible competitor to spallation for nuclear energy applications

Journal Article Nuclear Science and Engineering · January 1, 2009 Measurements are reported on the yield of neutrons from protons in the energy range from 7 to 17 MeV striking a stopping-length target of deuterium gas. This combination of beam and target is being investigated as an alternative to spallation for accelerat ... Full text Cite

Reducing Parasitic Thermal Neutron Absorption in Graphite by 30%

Journal Article Nucl. Science and Eng. · 2009 Cite

Multipole mixing ratios of transitions in $^{11}$B

Journal Article Phys. Rev. C · 2009 Photon scattering experiments with photon energies up to 3.6 MeV have been performed on the axially deformed nucleus 164Dy. We observe the -decay from the scissors mode to the -vibration for the first time in a well-deformed rotor. Previous ambiguities i ... Cite

Competition Between Excited Core States and $1$ $\hbar \omega$ Single-particle Excitations at Comparable Energies in $^{207}$Pb from Photon Scattering

Journal Article Phys. Lett. B · 2009 The Pb(\vec{γ} ,γ') photon scattering reaction has been studied with the nearly monochromatic, linearly polarized photon beams at the High Intensity γ -ray Source (HIγ S) at the DFELL. Azimuthal scattering intensity asymmetries measured with respect to the ... Cite

The MAJORANA Neutrinoless Double-Beta Decay Experiment

Conference 2008 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE (2008 NSS/MIC), VOLS 1-9 · January 1, 2009 Link to item Cite

The Majorana project

Conference Journal of Physics Conference Series · January 1, 2009 Building a 0νβ β experiment with the ability to probe neutrino mass in the inverted hierarchy region requires the combination of a large detector mass sensitive to 0νβ β, on the order of 1-tonne, and unprecedented background levels, on the order of or less ... Full text Cite

The 20th anniversary of the three-nucleon analyzing power puzzle - A personal recollection

Conference Few Body Systems · December 1, 2008 The history of the three-nucleon analyzing power puzzle is described by an experimentalist who has been collaborating with few-body theoreticians in trying to unravel the physics of this long-standing phenomenon. Although surprising effects have been disco ... Full text Cite

Energy dependence of the three-nucleon analyzing power puzzle

Journal Article Journal of Physics G Nuclear and Particle Physics · December 1, 2008 We report on the energy dependence of the three-nucleon analyzing power puzzle in proton-deuteron elastic scattering. It was found that the relative difference between calculations and data remains nearly constant at the 25% level up to about 25 MeV incide ... Full text Cite

The MAJORANA neutrinoless double-beta decay experiment

Journal Article IEEE Nuclear Science Symposium Conference Record · December 1, 2008 Neutrinoless double-beta decay searches play a major role in determining the nature of neutrinos, the existence of a lepton violating process, and the effective Majorana neutrino mass. The MAJORANA Collaboration proposes to assemble an array of HPGe detect ... Full text Cite

Attempt to manipulate the decay rate of Cu64

Journal Article Physical Review C Nuclear Physics · November 4, 2008 We searched for a temperature dependence of the half-life (T1/2) of Cu64 embedded in natural copper. We did not observe any change in T1/2 between room temperature and 12 K on the level of 0.25%. Some earlier studies had suggested an increased T1/2 (by a f ... Full text Cite

Double-electron capture on Sn112 to the excited 1871 keV state in Cd112: A possible alternative to double-β decay

Journal Article Physical Review C Nuclear Physics · September 19, 2008 We report the first use of a coincidence technique to study neutrinoless double-electron capture (0νECEC) to an excited state in the daughter nucleus. We investigated 0νECEC by Sn112 leading to the possibly degenerate 1871 keV excited state in Cd112 by sea ... Full text Cite

Evidence for neutron production in deuterium gas with a pyroelectric crystal without tip

Journal Article Journal of Applied Physics · August 25, 2008 We present evidence for the production of H2 (d,n) 3 He neutrons in gaseous deuterium by using a pyroelectric crystal as positive ion accelerator. In contrast to previous studies, neutrons were generated without a tip attached to the crystal and without us ... Full text Cite

Precision measurement of neutrino oscillation parameters with KamLAND.

Journal Article Physical review letters · June 2008 The KamLAND experiment has determined a precise value for the neutrino oscillation parameter Deltam21(2) and stringent constraints on theta12. The exposure to nuclear reactor antineutrinos is increased almost fourfold over previous results to 2.44 x 10(32) ... Full text Cite

The three-nucleon analyzing power puzzle - The past 20 years

Conference Aip Conference Proceedings · May 28, 2008 The history of the three-nucleon analyzing power puzzle is described from the point of view of an experimentalist who has been collaborating closely with few-body theoreticians in trying to unravel the physics behind this long-standing low-energy scatterin ... Full text Cite

Measurement of the Am241(n,2n) reaction cross section from 7.6 MeV to 14.5 MeV

Journal Article Physical Review C Nuclear Physics · May 27, 2008 The (n,2n) cross section of the radioactive isotope Am241 (T1/2=432.6 y) has been measured in the incident neutron energy range from 7.6 to 14.5 MeV in steps of a few MeV using the activation technique. Monoenergetic neutron beams were produced via the H2( ... Full text Cite

Measurement of the neutron-neutron scattering length using the π-d capture reaction

Journal Article Physical Review C Nuclear Physics · May 23, 2008 We have determined a value for the 1S0 neutron-neutron scattering length (ann) from high-precision measurements of time-of-flight spectra of neutrons from the H2(π-,nγ)n capture reaction. The measurements were done at the Los Alamos Meson Physics Facility ... Full text Cite

Near-threshold deuteron photodisintegration: An indirect determination of the Gerasimov-Drell-Hearn sum rule and forward spin polarizability (γ0) for the deuteron at low energies

Journal Article Physical Review C Nuclear Physics · April 24, 2008 It is shown that a measurement of the analyzing power obtained with linearly polarized γ-rays and an unpolarized target can provide an indirect determination of two physical quantities. These are the Gerasimov-Drell-Hearn (GDH) sum rule integrand for the d ... Full text Cite

Neutron-proton analyzing power at 12 MeV and inconsistencies in parametrizations of nucleon-nucleon data

Journal Article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · February 21, 2008 We present the most accurate and complete data set for the analyzing power Ay (θ) in neutron-proton scattering. The experimental data were corrected for the effects of multiple scattering, both in the center detector and in the neutron detectors ... Full text Cite

Research Opportunities at the Upgraded HIGS Facility

Journal Article Progress in Particle and Nuclear Physics · 2008 Cite

Measurements of thermal neutron diffraction and inelastic scattering in reactor-grade graphite

Journal Article Nuclear Science and Engineering · January 1, 2008 High-resolution Bragg-edge transmission measurements were conducted on granular as well as solid samples of graphite to understand the basis for a bulk measurement of the diffusion length 24% larger than predicted by MCNP5 for bulk reactor-grade graphite. ... Full text Cite

Pulsed and monoenergetic beams for neutron cross-section measurements using activation and scattering techniques at Triangle Universities Nuclear Laboratory

Journal Article Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms · August 1, 2007 In support of the Stewardship Science Academic Alliances initiative, an experimental program has been developed at Triangle Universities Nuclear Laboratory (TUNL) to measure (n,xn) cross-sections with both in-beam and activation techniques with the goal of ... Full text Cite

Some recent few-body activities at Tunl

Journal Article Nuclear Physics A · June 15, 2007 Full text Cite

Study of collective dipole excitations below the giant dipole resonance at HIγS

Journal Article Aip Conference Proceedings · April 4, 2007 The High-Intensity Gamma-ray Source utilizing intra-cavity back-scattering of free electron laser photons from relativistic electrons allows one to produce a unique beam of high-flux gamma rays with 100% polarization and selectable energy and energy resolu ... Full text Cite

Missing dipole excitation strength below the particle threshold

Conference Proceedings of Science · January 1, 2007 High sensitivity studies of E1 andM1 excitations fromthe 138Ba(γ,γ') reaction at energies close to the neutron emission threshold have been performed. The electric dipole character of the "pygmy" mode was experimentally verified for excitations from 5.5-8. ... Cite

Measurement of the relative longitudinal spin-dependent total cross-section difference in n→-d→ scattering

Journal Article Physical Review C Nuclear Physics · March 23, 2006 We report relative measurements of the n→-d→ longitudinal spin-dependent total cross-section difference (ΔσL)d, at En(lab) = 5.0, 6.88, and 9.0 MeV. The deuteron target was polarized via dynamic nuclear polarization at 250 mK in a 2.5-T external magnetic f ... Full text Cite

Low-energy dipole modes of excitation below the neutron separation energy

Journal Article Aip Conference Proceedings · March 13, 2006 The nuclear resonance fluorescence experiments have been performed at the High Intensity Gamma Source (HIγS) on 138Ba nuclei using four 60% efficient HPGe detectors. Excitation energies, spin, parities, and decay branching ratios were measured f ... Full text Cite

New findings for mixed-symmetry states

Journal Article Aip Conference Proceedings · March 13, 2006 This report summarizes experiments performed on 164Dy using photon scattering techniques. The scissors mode in 164Dy has been reinvestigated using unpolarized photons from bremsstrahlung and polarized photons from a free electron lase ... Full text Cite

Photo-induced population of the h11/2 isomeric states in (γ, n) reactions

Conference Aip Conference Proceedings · March 13, 2006 The mechanism of excitation of isomeric h11/2 states in nuclei around the closed shell at N=82 have been studied at the High-Intensity Gamma Source (HIγS). We have taken advantage of the monoenergetic (ΔE/E=1.5%) and pulsed γ-ray-beam from HIγS ... Full text Cite

First evidence for spin-flip M1 strength in 40A

Journal Article Physical Review C · March 2006 www.aps.org ... Link to item Cite

Search for the invisible decay of neutrons with KamLAND.

Journal Article Physical review letters · March 2006 The Kamioka Liquid scintillator Anti-Neutrino Detector is used in a search for single neutron or two-neutron intranuclear disappearance that would produce holes in the -shell energy level of (12)C nuclei. Such holes could be created as a result of nucleon ... Full text Cite

Neutron-deuteron breakup experiment at En=13MeV: Determination of the 1S0 neutron-neutron scattering length ann

Journal Article Physical Review C Nuclear Physics · January 1, 2006 We report on results of a kinematically complete neutron-deuteron breakup experiment performed at Triangle Universities Nuclear Laboratory using an En=13 MeV incident neutron beam. The 1S0 neutron-neutron scattering length ann has been determined for four ... Full text Cite

Direct nn-scattering at the YAGUAR reactor

Journal Article Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms · December 1, 2005 The Direct Investigation of ann Association (DIANNA) is finalizing the design of a direct measurement of the nn-scattering length to be performed at the YAGUAR reactor in Snezhinsk, Russia. Extensive modeling of the neutron field, nn-scattering ... Full text Cite

Evaluation of n-12C scattering between 7 and 26 MeV

Journal Article Journal of Physics G Nuclear and Particle Physics · November 1, 2005 The existing n-12C elastic differential cross-section, analysing power and total cross-section data in the energy range from 7 to 26 MeV were analysed via a phase-shift analysis. A very good description of the uniquely large database has been ac ... Full text Cite

Photon analyzing power for the three-body breakup of 3He at Eγ = 15.0 MeV

Journal Article Aip Conference Proceedings · May 6, 2005 Photon analyzing power for the three-body breakup of 3He has been studied at Eγ = 15.0 MeV. The measurements were done at the HIγS facility at Duke University. © 2005 American Institute of Physics. ... Full text Cite

Measurement of neutrino oscillation with KamLAND: evidence of spectral distortion.

Journal Article Physical review letters · March 2005 We present results of a study of neutrino oscillation based on a 766 ton/year exposure of KamLAND to reactor antineutrinos. We observe 258 nu (e) candidate events with energies above 3.4 MeV compared to 365.2+/-23.7 events expected in the absence of neutri ... Full text Cite

The proposed Majorana 76Ge double-beta decay experiment

Journal Article Nuclear Physics B Proceedings Supplements · January 1, 2005 The proposed Majorana experiment is based on an array of segmented intrinsic Ge detectors with a total mass of 500 kg of Ge isotopically enriched to 86% in 76Ge. Background reduction will be accomplished by: material selection, detector segmenta ... Full text Cite

107. The High Intensity Gamma-Ray Source (HIγS) and Recent Results

Journal Article Nucl. Instr. and Meth. in Physics Research · 2005 Cite

Direct nn-scattering at the YAGUAR reactor

Journal Article Nucl. Instr. and Meth. in Physics Research · 2005 Cite

Direct nn-Scattering Measurement with the Pulsed Reactor YAGUAR

Journal Article J. Res. Natl. Inst. Stand. Technol. · 2005 Cite

The high intensity gamma-ray source HIGS and recent measurements

Journal Article Nucl. Instr. Methods B. · 2005 The high intensity γ-ray source (HIγS) utilizes intra-cavity backscattering of free electron laser photons from the Duke electron storage ring to produce a unique monoenergetic beam of high-flux γ-rays with high polarization and selectable e ... Cite

Cross-section measurements of neutron-deuteron breakup at 13.0 MeV

Journal Article Physical Review C Nuclear Physics · January 1, 2005 Cross-section measurements of seven exit-channel configurations in the neutron-deuteron breakup at 13.0 MeV are reported and compared to rigorous calculations. Our data are consistent with those of previous measurements in four of six configurations. The p ... Full text Cite

A direct measurement of the neutron-neutron scattering length

Journal Article Brazilian Journal of Physics · January 1, 2005 A direct measurement of nn-scattering by colliding free neutrons has never been performed. Indirect measurements continue to provide inconsistent results, leaving the issue of charge symmetry in the nuclear force unresolved. At present the Russian pulsed r ... Full text Cite

Measurements of Ay(θ) for C12(n,n)C12 from En=2.2 to 8.5 MeV

Journal Article Physical Review C Nuclear Physics · January 1, 2005 The analyzing power Ay(θ) for neutron elastic scattering from C12 has been measured for 33 neutron energies between En=2.2 and 8.5 MeV in the angular range from 25° to 145° in the laboratory system. The primary motivation for these measurements is the need ... Full text Cite

A dispersive optical model for n +120Sn from -15 to +80 MeV and properties of neutron single-particle and single-hole states

Journal Article Journal of Physics G Nuclear and Particle Physics · December 1, 2004 Data for σ(θ) and Ay(θ) previously obtained at the Triangle Universities Nuclear Laboratory for 120Sn(n, n) are combined with other measurements of σ(θ) and Ay(θ) to create an elastic-scattering database from 9.9 to 24 MeV. ... Full text Cite

The Majorana neutrinoless double-beta decay experiment

Journal Article Physics of Atomic Nuclei · November 1, 2004 The proposed Majorana double-beta decay experiment is based on an array of segmented intrinsic Ge detectors with a total mass of 500 kg of Ge isotopically enriched to 86% in 76Ge. A discussion is given of background reduction by material selecti ... Full text Cite

Calculations of neutron spectra after neutron-neutron scattering

Journal Article Journal of Physics G Nuclear and Particle Physics · September 1, 2004 A direct neutron-neutron scattering length, ann, measurement with the goal of 3% accuracy (0.5 fm) is under preparation at the aperiodic pulsed reactor YAGUAR. A direct measurement of ann will not only help resolve conflicting results ... Full text Cite

Extension of proton-deuteron phase-shift analysis to Ep = 22.7 MeV and 4PJ phase shifts

Journal Article Few Body Systems · September 1, 2004 A previously reported proton-deuteron phase-shift analysis has been extended by more than a factor of two to a proton energy of Ep = 22.7 MeV. Three-nucleon phase-shift and mixing parameters calculated with the Argonne ν18 nucleon-nuc ... Full text Cite

Neutron stimulated emission computed tomography of stable isotopes

Journal Article Proceedings of SPIE the International Society for Optical Engineering · July 5, 2004 Here we report on the development of a new molecular imaging technique using inelastic scattering of fast neutrons. Earlier studies demonstrated a significant difference in trace element concentrations between benign and malignant tissue for several cancer ... Full text Cite

List of committees

Journal Article Nuclear Physics A · June 2004 Full text Cite

Direct Measurement of Neutron-Neutron Scattering

Conference Aip Conference Proceedings · August 26, 2003 In order to resolve long-standing discrepancies in indirect measurements of the neutron-neutron scattering length ann and contribute to solving the problem of the charge symmetry of the nuclear force, the collaboration DIANNA (Direct Investigati ... Full text Cite

Electromagnetic effects and the long-standing three-nucleon analyzing power puzzle

Journal Article Modern Physics Letters A · February 28, 2003 New results for the neutron-deuteron analyzing power Ay (θ) at En = 1.2 and 1.9 MeV and their comparison to proton-deuteron data reveal a sizeable and unexpected difference which increases with decreasing center-of-mass energy. This f ... Full text Cite

A new twist to the long-standing three-nucleon analyzing power puzzle

Journal Article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · January 16, 2003 New results for the neutron-deuteron analyzing power Ay(θ) at En = 1.2 and 1.9 MeV and their comparison to proton-deuteron data reveal a sizeable and unexpected difference which increases with decreasing center-of-mass energy. This fi ... Full text Cite

Effects of the magnetic moment interaction between nucleons on observables in the [Formula Presented] continuum

Journal Article Physical Review C - Nuclear Physics · January 1, 2003 The influence of the magnetic moment interaction of nucleons on nucleon-deuteron elastic scattering and breakup cross sections and on elastic scattering polarization observables has been studied. Among the numerous elastic scattering observables only the v ... Full text Cite

Reactor YAGUAR as a Pulsed Source for a Direct nn-Scattering Measurement

Journal Article The proceedings of ICANS XVI, eds. G. Mank and H. Conrad (Forschungszentrum Julich GmbH, Julich) · 2003 Cite

Photodisintegration of the deuteron between E-gamma=2.4 and 4.0 MeV

Journal Article FEW BODY PROBLEMS IN PHYSICS '02 · January 1, 2003 Link to item Cite

Dispersive optical-model and coupled-channels descriptions of neutron scattering from [Formula Presented] and [Formula Presented] up to [Formula Presented]

Journal Article Physical Review C - Nuclear Physics · January 1, 2003 Differential cross sections [Formula Presented] and analyzing powers [Formula Presented] have been measured for neutron scattering from [Formula Presented] and [Formula Presented] at [Formula Presented] at the Triangle Universities Nuclear Laboratory using ... Full text Cite

Modeling fast neutron shielding for the direct nn-scattering experiment

Journal Article International Meeting on Nuclear Applications of Accelerator Technology Accelerator Application in A Nuclear Renaissance · January 1, 2003 Modern high power accelerators and reactors provide the possibility of a direct measurement of neutron-neutron scattering. This experiment addresses the fundamental problem of charge symmetry in the nuclear force by comparing the proton-proton, pp, and neu ... Cite

The Majorana 76Ge double-beta decay project

Journal Article Nuclear Physics B Proceedings Supplements · January 1, 2003 The interest and relevance of next-generation 0ν ββ-decay experiments is increasing. Even with nonzero neutrino mass strongly suggested by solar and atmospheric neutrino experiments sensitive to δm2, 0ν ββ-decay experiments ... Full text Cite

Direct measurement of the neutron-neutron scattering cross section at the reactor YAGUAR

Journal Article Journal of Physics G Nuclear and Particle Physics · October 1, 2002 We propose to perform the first measurement of the neutron-neutron scattering cross section in the through-channel of the pulsed aperiodic reactor YAGUAR (Snezhinsk, Russia). Such a measurement directly determines the neutron-neutron scattering length, and ... Full text Cite

Comment on "evidence for neutrinoless double beta decay"

Journal Article Modern Physics Letters A · July 20, 2002 We comment on the recent claim for the experimental observation of neutrinoless doublebeta decay. We discuss several limitations in the analysis provided in that paper and conclude that there is no basis for the presented claim. ... Full text Cite

Improved proton-deuteron phase-shift analysis above the deuteron breakup threshold and the three-nucleon analyzing-power puzzle

Journal Article Few Body Systems · June 1, 2002 Using the existing high-accuracy data for proton-deuteron and deuteron-proton elastic scattering, a phase-shift analysis has been performed in the laboratory proton energy range from Ep = 4 to 10 MeV. The AV18-based proton-deuteron phase shifts ... Full text Cite

Overview on reactions involving few-body nuclei

Journal Article Czechoslovak Journal of Physics · March 2002 Full text Cite

Double polarized neutron-proton scattering and nucleon-nucleon tensor force: An alternative analysis

Journal Article Physical Review C Nuclear Physics · January 1, 2002 Previous neutron-proton total cross-section difference measurements ΔσL and ΔσT between En = 7.43 and 17.1 MeV have been analyzed in a new way that reduces experimental systematic uncertainties. The results obtained for the ... Full text Cite

Recent status of the KamLAND experiment

Journal Article Nuclear Physics B Proceedings Supplements · January 1, 2002 The KamLAND experiment is a very long baseline reactor ̄ne oscillation experiment. This experiment has sensitivity to the oscillation parameters Δℳ2 > 10-5 eV2 and sin2θ > 0.2, using reactor ̄ne Full text Cite

Spatial distribution and polarization of γ-rays generated via Compton backscattering in the Duke/OK-4 storage ring FEL

Conference Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment · November 21, 2001 Beams of nearly monochromatic γ-rays are produced via intracavity Compton backscattering in the OK-4/Duke storage ring FEL, the high-intensity γ-ray source (HIγS). Presently, HIγS generates γ-ray beams with an energy tunable from 2 to 58MeV and a maximum f ... Full text Cite

Neutron–deuteron analyzing power at En=2.0 MeV

Journal Article Nuclear Physics A · March 12, 2001 Full text Cite

Experimental few-nucleon studies at low and intermediate energies

Journal Article Nuclear Physics A · March 12, 2001 Full text Cite

The triangle universities nuclear laboratory

Journal Article International Journal of Phytoremediation · January 1, 2001 Full text Cite

High-intensity gamma-ray source

Conference APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY · January 1, 2001 Link to item Cite

Low-energy NN tensor force from n→-p→ scattering: Results of an accurate experimental approach

Journal Article Physical Review C Nuclear Physics · January 1, 2001 The spin-dependent neutron-proton total cross-section differences ΔσL and ΔσT have been measured between En=5 and 20 MeV in longitudinal and transverse nucleon spin orientations. From these data the 3S1 Full text Cite

Analytical solution of dispersion relations for the nuclear optical model

Journal Article Journal of Physics G Nuclear and Particle Physics · December 1, 2000 Analytical solutions of dispersion integral relations, linking the real and imaginary parts of the nuclear optical model, have been derived. These are displayed for some widely used forms of the volume-and surface-absorptive nuclear potentials. When the an ... Full text Cite

ORLaND: A Proposed Neutrino Facility at the Oak Ridge National Laboratory

Conference Physics of Atomic Nuclei · December 1, 2000 Oak Ridge National Laboratory, Tennessee, USA, ORLaND is a collaboration proposing a major neutrino physics facility at the Spallation Neutrino Source (SNS) at the Oak Ridge National Laboratory. An underground bunker is proposed adjacent to the first targe ... Full text Cite

Recent high-accuracy measurements of the S-1(0) neutron-neutron scattering length

Journal Article FEW-BODY PROBLEMS IN PHYSICS '99 · January 1, 2000 Link to item Cite

First measurement of the near-threshold 2H(γ→,n)p analyzing power using a free-electron laser based γ-ray source

Journal Article Physical Review C Nuclear Physics · January 1, 2000 The first measurement of the 2H(γ→,n)p analyzing power near threshold has been performed using the High-Intensity Gamma-ray Source (HIGS) at the Duke Free-Electron Laser Laboratory. A 3.58 MeV γ-ray beam having an energy resolution of ... Full text Cite

First measurement of the near-threshold [Formula Presented] analyzing power using a free-electron laser based [Formula Presented]-ray source

Journal Article Physical Review C - Nuclear Physics · January 1, 2000 The first measurement of the [Formula Presented] analyzing power near threshold has been performed using the High-Intensity Gamma-ray Source (HIGS) at the Duke Free-Electron Laser Laboratory. A 3.58 MeV [Formula Presented]-ray beam having an energy resolut ... Full text Cite

Some highlights of NN and 3N studies at TUNL

Conference FEW-BODY PROBLEMS IN PHYSICS '99 · January 1, 2000 Link to item Cite

Double polarized neutron-proton scattering and meson-exchange nucleon-nucleon potential models

Journal Article Physical Review Letters · January 1, 1999 We report on polarized beam-polarized target measurements of the spin-dependent neutron-proton total cross-section differences in longitudinal and transverse geometries (ΔσL and ΔσLT, respectively) between En=5 and 20 MeV. ... Full text Cite

Determination of the 3Pj Phase Shifts from Nucleon-Nucleon Data: A Critical Evaluation and a Surprising Result

Journal Article Few Body Systems · January 1, 1999 It is shown that the 3Pj neutron-proton (proton-proton) phase shifts cannot be determined to less than ±100% (±20%) uncertainty at low energies (± 10 MeV), even if high-accuracy nucleon-nucleon data were to become available for curren ... Full text Cite

A new measurement of the 1S0 neutron-neutron scattering length using the neutron-proton scattering length as a standard

Journal Article Physical Review Letters · January 1, 1999 The present paper reports high-accuracy cross-section data for the 2H(n, nnp) reaction in the neutron-proton (np) and neutron-neutron (nn) final-state-interaction (FSI) regions at an incident mean neutron energy of 13.0 MeV. These data were analyzed with r ... Full text Cite

Extraction of the S-1(0) neutron-neutron scattering length from a kinematically-complete n-d breakup experiment at TUNL

Conference APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY, PTS 1 AND 2 · January 1, 1999 Link to item Cite

Hadronic probes of few-nucleon systems

Conference FEW-BODY PROBLEMS IN PHYSICS '98 · January 1, 1999 Link to item Cite

New measurements of spin-dependent n-p cross sections

Conference APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY, PTS 1 AND 2 · January 1, 1999 Link to item Cite

Toward a resolution of the neutron-neutron scattering-length issue

Journal Article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · December 24, 1998 We report a high-precision determination of the 1S0 neutron-neutron scattering length (ann) using the 2H(π-,ny)n reaction. The value obtained in the present work is -18.50 ± 0.05 (statistical) ± 0.44 ( ... Full text Cite

Evaluation of the three-nucleon analyzing power puzzle

Journal Article Nuclear Physics A · July 2, 1998 The current status of the three-nucleon analyzing power puzzle is reviewed. Applying tight constraints on the allowed deviations between calculated predictions and accepted values for relevant nucleon-nucleon observables reveals that energy independent cor ... Full text Cite

OK-4/Duke monochromatic gamma-ray source: performance and prediction

Journal Article Nuclear Instruments \& Methods In Physics Research Section A-accelerators Spectrometers Detectors And Associated Equipment · April 1998 Cite

Proton-deuteron phase-shift analysis above the deuteron breakup threshold

Journal Article Nuclear Physics A · March 2, 1998 We have performed single-energy phase-shift analyses of proton-deuteron elastic scattering data in the proton energy range from 3.5 to 10 MeV. The resulting values for the 2S1/2 and 4P1/2, 4P3/2 Full text Cite

Scattering length measurements from radiative pion capture and neutron-deuteron breakup

Journal Article Nuclear Physics A · March 2, 1998 The neutron-neutron and neutron-proton 1So scattering lengths ann and anp, respectively, were determined simultaneously from the neutron-deuteron breakup reaction. Their comparison with the recommended values obt ... Full text Cite

Nuclear research at Duke [5]

Journal Article Science · January 23, 1998 Cite

The scattering of polarized neutrons from statically polarized solid 3He

Journal Article Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment · January 11, 1998 We have constructed a 0.4 mole solid 3He target, cryogenically polarized at 12 mK in a field of 7 T. The 0.04 atoms/b target reached a polarization of 38% in 35 h. Such a target may be applied to any experiment which is tolerant of the large amb ... Full text Cite

Do phase-shift analyses and nucleon-nucleon potential models yield the wrong [Formula Presented] phase shifts at low energies?

Journal Article Physical Review C Nuclear Physics · January 1, 1998 The [Formula Presented] waves in nucleon-deuteron scattering were analyzed using proton-deuteron and neutron-deuteron data at [Formula Presented]=3 MeV. New sets of nucleon-nucleon [Formula Presented] phase shifts were obtained that may lead to a better un ... Full text Cite

Measurements at low energies of the polarization-transfer coefficient Ky′yfor the reaction 3H(p→,n→)3He at 0°

Journal Article Few Body Systems · January 1, 1998 Measurements of the transverse polarization-transfer coefficient Ky′y for the reaction 3H(p→,n→)3He are reported for outgoing neutron energies of 1.94, 5.21, and 5.81 MeV. This reaction is i ... Full text Cite

Polarization transfer in the [Formula Presented] reaction and the [Formula Presented] level in [Formula Presented]

Journal Article Physical Review C Nuclear Physics · January 1, 1998 Longitudinal polarization-transfer coefficients for the [Formula Presented] reaction have been measured at zero degrees for proton energies of 1.3–2.8 MeV. The results show a striking resonance behavior for energies corresponding to excitation of the [Form ... Full text Cite

Determination of the neutron detection efficiency of an NE213 scintillator for En = 2.5 to 16 MeV using the 2H(d, n)3He reaction

Journal Article Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment · September 11, 1997 The absolute efficiency of an NE213 liquid scintillator of 12.7 cm diameter and 5.08 cm thickness was measured in the neutron energy range 2.5-16 MeV using the 2H(d, n)3He reaction as a source of monoenergetic neutrons. The efficienci ... Full text Cite

Gamma-ray production in a storage ring free-electron laser

Journal Article Physical Review Letters · June 1997 Cite

No evidence for large charge-symmetry breaking effects in the [Formula Presented] nucleon-nucleon interactions

Journal Article Physical Review C Nuclear Physics · January 1, 1997 Rigorous calculations of proton-deuteron and neutron-deuteron analyzing power [Formula Presented] angular distributions in the incident nucleon energy range from 1 to 3 MeV are presented. It is shown that the sizable difference in the magnitude of [Formula ... Full text Cite

Analyzing power measurements for the [Formula Presented] breakup reaction at 12 MeV

Journal Article Physical Review C Nuclear Physics · January 1, 1997 We report the most extensive set of vector [Formula Presented] and tensor [Formula Presented] and [Formula Presented] analyzing-power data for the [Formula Presented] reaction. Two-particle coincidence data have been measured for six deuteron-proton, three ... Full text Cite

Neutron scattering differential cross sections of carbon and Bismuth at 37 MeV

Conference INTERNATIONAL CONFERENCE ON NUCLEAR DATA FOR SCIENCE AND TECHNOLOGY, VOL 59, PT 1 AND 2 · January 1, 1997 Link to item Cite

Neutron experiment in the energy range 25 to 40 MeV

Conference INTERNATIONAL CONFERENCE ON NUCLEAR DATA FOR SCIENCE AND TECHNOLOGY, VOL 59, PT 1 AND 2 · January 1, 1997 Link to item Cite

Is the two-nucleon three nucleon paradigm an illusion?

Conference APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY - PROCEEDINGS OF THE FOURTEENTH INTERNATIONAL CONFERENCE, PTS 1 AND 2 · January 1, 1997 Link to item Cite

Verification of the space-star anomaly in nd breakup

Journal Article Physics Letters Section B Nuclear Elementary Particle and High Energy Physics · November 14, 1996 Cross-section measurements of a collinear configuration, the space-star and the coplanar-star configurations in nd breakup at En = 13.0 MeV are reported. The present measurements for the collinear configuration are in good agreement with pd and ... Full text Cite

Critical comparison of experimental data and theoretical predictions for N-d scattering below the breakup threshold

Journal Article Nuclear Physics A · September 30, 1996 The theoretical approaches for studying N-d processes using realistic, semi-phenomenological NN potentials have matured considerably during the last few years. Accurate calculations of scattering observables are now feasible. Recently, high-quality measure ... Full text Cite

Sonoluminescence and high-pressure gas scintillators.

Journal Article Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics · May 1996 Full text Cite

Extraction of the neutron-neutron scattering length ann from kinematically complete neutron-deuteron breakup experiments

Journal Article Few Body Systems · January 1, 1996 Data for the neutron-neutron final-state-interaction cross section obtained recently in a kinematically complete neutron-deuteron breakup experiment have been reanalyzed using rigorous solutions of the three-nucleon Faddeev equations with realistic nucleon ... Full text Cite

Selected topics of the few-nucleon research program at TUNL

Conference FEW-BODY PROBLEMS IN PHYSICS '95 · January 1, 1996 Link to item Cite

Measurements of Delta sigma T in polarized-neutron-polarized-proton scattering.

Journal Article Physical review. C, Nuclear physics · November 1995 Full text Cite

Probing the three-nucleon force using nucleon-deuteron breakup reactions

Journal Article Nuclear Inst and Methods in Physics Research B · May 5, 1995 Results of our recent kinematically complete cross-section measurements of the space-star and coplanar-star configurations in n-d breakup at 13.0 MeV are reported. The experimental setup and details of the analysis are described. The new data for the space ... Full text Cite

A polarized solid 3He target for neutron transmission experiments

Journal Article Nuclear Inst and Methods in Physics Research A · April 1, 1995 We describe the construction and operation of a solid 3He polarized nuclear target which we have used for measurements of the spin dependence of the n-3He interaction at MeV energies. The target, which contains 0.4 mole of 3 Full text Cite

Polarized targets at triangle universities nuclear laboratory

Journal Article Nuclear Inst and Methods in Physics Research A · March 1, 1995 A summary of the polarized and aligned nuclear targets which have been constructed and used at the Triangle Universities Nuclear Laboratory is given. Statically polarized targets, typically operating at a temperature of 12 mK and a magnetic field of 7 T, h ... Full text Cite

Neutron-proton analyzing power at 12 MEV and charged pi NN coupling constant

Conference POLARIZATION PHENOMENA IN NUCLEAR PHYSICS · January 1, 1995 Link to item Cite

New results in nucleon-nucleon scattering at low energies

Conference POLARIZATION PHENOMENA IN NUCLEAR PHYSICS · January 1, 1995 Link to item Cite

Resolution of discrepancy between backward angle cross-section data for neutron-deuteron elastic scattering

Journal Article Few Body Systems · September 1, 1994 High-accuracy differential cross-section data for neutron-deuteron elastic scattering at centre-of-mass backward angles in the range from 140° to 178° have been measured to accuracies better than ±3% for incident neutron energies of 8.0, 10.0, and 14.0 MeV ... Full text Cite

Response-function measurement of an NE213 scintillator using the 2H(d, n)3He reaction

Journal Article Nuclear Inst and Methods in Physics Research A · January 1, 1994 The response function of a 12.5 cm diameter NE213 scintillator detector has been measured over neutron energies ranging from 4.9 to 16.6 MeV. Beams of monoenergetic neutrons were produced using the 2H(d, n)3He reaction. The response f ... Full text Cite

Determination of the neutron-neutron scattering length from incomplete neutron-deuteron breakup experiments

Journal Article Physics Letters B · December 2, 1993 We present results of the first analysis of published proton spectra from the incomplete neutron-deuteron breakup reaction using a realistic nucleon-nucleon potential (Bonn B) in rigorous three-nucleon Faddeev calculations. Our results for the 1 ... Full text Cite

Neutron scattering from 12C between 15.6 and 17.3 MeV

Journal Article Journal of Physics G Nuclear and Particle Physics · December 1, 1993 The differential cross section sigma ( theta ) for neutron elastic scattering from 12C and for inelastic scattering from the 4.44 MeV state was measured at 15.57, 16.75 and 17.29 MeV. The sigma ( theta ) data, together with published analysing p ... Full text Cite

Novel probe of charge symmetry breaking: Deuteron-induced deuteron breakup.

Journal Article Physical review. C, Nuclear physics · December 1993 Full text Cite

Dipole and spin-dipole resonances in charge-exchange reactions on 12C.

Journal Article Physical review. C, Nuclear physics · September 1993 Full text Cite

Energy dependence of multipole strength distributions in the 32S(n,p)32P reaction.

Journal Article Physical review. C, Nuclear physics · August 1993 Full text Cite

The dispersive optical model for n + 208Pb and n + 209Bi

Journal Article Nuclear Inst and Methods in Physics Research B · June 2, 1993 The dispersive optical model (DOM) provides a natural connection between the shell model potential for bound states and the optical model for nucleon scattering at positive energies. At TUNL we have developed DOMs for neutron scattering for ten nuclei betw ... Full text Cite

Complete set of deuteron analyzing powers in deuteron-proton elastic scattering: Measurement and realistic potential predictions

Journal Article Few Body Systems · January 1, 1993 Tensor analyzing powers iT11, T20, T21 and T22, have been measured for deuteron laboratory energies Elabd=75, 85, 95, 106, 119, 131, 144, 156, 172, and 187 MeV. The data are compared to rig ... Full text Cite

Energy dependence of possible charge-independence- and charge-symmetry-breaking effects in NN3PJ interactions from three-nucleon continuum studies

Journal Article Few Body Systems · December 1, 1992 A recent study of charge-independence-and charge-symmetry-breaking effects in the3PJ nucleon-nucleon interactions has been extended down to 5 MeV nucleon energy. It has been found that charge-independence-breaking effects are almost e ... Full text Cite

Neutron-proton analyzing power data between 7.6 and 18.5 MeV.

Journal Article Physical review. C, Nuclear physics · November 1992 Full text Cite

3He melting curve thermometry in a nuclear polarization experiment

Journal Article Hyperfine Interactions · November 1, 1992 Temperature measurement and control are important in brute force polarization experiments. We discuss the installation and use of3He melting curve thermometers in a crystat used to polarize a TiH2 target. Comparison is made between th ... Full text Cite

Phase-shift analysis of neutron-208Pb scattering and mean-field studies.

Journal Article Physical review. C, Nuclear physics · September 1992 Full text Cite

Gamow-Teller and dipole strength distribution in 40Ca(n,p)40K reaction.

Journal Article Physical review. C, Nuclear physics · April 1992 Full text Cite

Energy dependence of nucleon-deuteron elastic scattering observables and its bearing on the3PJ nucleon-nucleon interactions

Journal Article Few Body Systems · March 1, 1992 The energy dependence of neutron-deuteron elastic scattering observables has been calculated from 5 to 45 MeV via rigorous three-nucleon calculations using the Bonn B nucleon-nucleon interaction. The goal of these calculations was to identify energy and an ... Full text Cite

NUCLEAR STUDIES AT TUNL USING POLARIZED NEUTRON BEAMS

Conference BEIJING INTERNATIONAL SYMPOSIUM ON FAST NEUTRON PHYSICS · January 1, 1992 Link to item Cite

Ground-state Gamow-Teller strength in 64Ni(n,p)64Co cross sections at 90-240 MeV.

Journal Article Physical review. C, Nuclear physics · December 1991 Full text Cite

Neutron-deuteron elastic scattering and breakup reactions below 20 MeV

Journal Article Nuclear Inst and Methods in Physics Research B · May 1, 1991 In this paper we review the results of a series of high-accuracy measurements on the neutron-deuteron (n-d) scattering system at incident neutron energies below 20 MeV. These measurements were designed to: 1) provide data of sufficient accuracy to be used ... Full text Cite

The low-energy neutron-deuteron analyzing power and the 3P0,1,2 interactions of nucleon-nucleon potentials

Journal Article Physics Letters B · March 28, 1991 Data for the analyzing power Ay(θ) for the elastic scattering of neutrons from deuterons have been measured at 5.0, 6.5 and 8.5 MeV to an accuracy of ±0.0035. Surprisingly large differences have been observed at these low energies between the da ... Full text Cite

GROUND-STATE GAMOW-TELLER STRENGTH IN 64NI(N,P)64CO

Conference SPIN AND ISOSPIN IN NUCLEAR INTERACTIONS · January 1, 1991 Link to item Cite

RECENT DEVELOPMENTS IN LOW-ENERGY NUCLEON-NUCLEON INTERACTION STUDIES

Conference SPIN AND ISOSPIN IN NUCLEAR INTERACTIONS · January 1, 1991 Link to item Cite

NEUTRON-PROTON ANALYZING POWER DATA AT 7.6, 12.0, 14.1, 16.0, 18.5 MEV

Journal Article JOURNAL DE PHYSIQUE · November 15, 1990 Link to item Cite

Techniques for vector analyzing power measurements of the 2H(n, np)n breakup reaction at low energies

Journal Article Nuclear Inst and Methods in Physics Research A · May 10, 1990 Experimental methods to measure the vector analyzing powers over a broad range of kinematic configurations in the n-d breakup reaction have been developed at TUNL. These techniques employ the polarized beam facilities at TUNL and use the 2H(d, n ... Full text Cite

Sensitivity of n-p scattering observables to charge-independence breaking of the3P N-N phase shifts

Journal Article Few Body Systems · March 1, 1990 The sensitivity of neutron-proton scattering observables to the recently reported charge-independence breaking of the isospin T=13P nucleon-nucleon interaction has been calculated. It is shown that only the analyzing power Ay(θ) at ex ... Full text Cite

THE CHANGING EMPLOYER EMPLOYEE RELATIONSHIP AND ITS IMPLICATIONS FOR HUMAN-RESOURCE MANAGEMENT - PROBLEM OR OPPORTUNITY

Conference HUMAN RESOURCE STRATEGIES FOR ORGANIZATIONS IN TRANSITION · January 1, 1990 Link to item Cite

Few-body physics investigated through polarized neutron experiments in A ≤ 3 systems at TUNL

Journal Article Nuclear Inst and Methods in Physics Research B · April 2, 1989 Accurate polarization data obtained with neutrons below 20 MeV in the A ≤ 3 systems provide important new information on details of the nucleon-nucleon (NN) interaction. The two-nucleon and three-nucleon data favor the Paris potential over the new Bonn (OB ... Full text Cite

Kerma factors and reaction cross sections for n+12C between 15 and 18 MeV

Journal Article Physics in Medicine and Biology · December 1, 1988 Differential elastic and inelastic (4.44 MeV) neutron scattering cross sections from 12C are presented at 15.6, 16.8 and 17.3 MeV. The existing 18.2 MeV differential cross-section data were combined with newly measured analysing power data to pa ... Full text Cite

Analysing power for 12C(n,n0,1)12C and evaluation of n-12C scattering at 18.2 MeV

Journal Article Journal of Physics G Nuclear Physics · December 1, 1988 The analysing power Ay( theta ) for 12C(n,n) 12C elastic scattering and for inelastic scattering to the first excited state (Jpi=2+, Q=-4.44 MeV) of 12C was measured at 18.2 MeV. A pulsed po ... Full text Cite

Measurement of the neutron-proton spin correlation coefficient Ayy at 90° c.m. by elastic scattering of 13.7 MeV polarized neutrons from a polarized proton target

Journal Article Nuclear Physics Section A · November 21, 1988 The neutron-proton spin correlation coefficient Ayy was measured at 90° c.m. by elastic scattering of 13.7 MeV polarized neutrons from a polarized proton target. The target polarization of about 60% was produced in a LMN single crystal by dynami ... Full text Cite

Dispersion relation approach to the coulomb correction term of the proton-nucleus optical model potential

Journal Article Physics Letters B · August 18, 1988 It is shown that the dispersion relation which connects the real and imaginary central parts of the proton-nucleus optical model potential gives rise to a real Coulomb correction term ΔVc, which consists of energy dependent surface and volume co ... Full text Cite

Discrepancy between three-nucleon calculations and neutron-deuteron elastic analyzing power data at 8.5 MeV

Journal Article Physics Letters B · April 7, 1988 The analyzing power Ay(θ) in neutron-deuteron elastic scattering was measured at En = 8.5 MeV. Comparison of the data with realistic three-nucleon calculations reveals a pronounced difference at the maximum of Ay(θ), which ... Full text Cite

Impact of the dispersion relation on the analyzing power for neutron elastic scattering from 40Ca

Journal Article Physics Letters B · March 24, 1988 Real surface and volume terms, as determined from a dispersion relation, are incorporated in new optical model analyses of (n, n) scattering from 40Ca over a broad energy range. The energy dependence of these terms lead to a rather good descript ... Full text Cite

Increasing the lifetime of avalanche transistors by cryogenic cooling

Journal Article Semiconductor Science and Technology · December 1, 1987 Operating the transistors 2N 5551 in the high voltage avalanche mode at 77 K increases their lifetime by a factor of at least 30. This improvement is due to an increased charged carrier mobility and thermal diffusivity at low temperatures which results in ... Full text Cite

Nanosecond transmission electron microscopy and diffraction

Journal Article Journal of Physics E Scientific Instruments · December 1, 1987 A conventional TEM was extended to a time-resolving instrument by installing a pulsed microchannel plate as a low-cost time-resolving image detector and a pulsed electron beam shutter. The technique provides electron micrographs and diffraction pictures of ... Full text Cite

The level structure of 13C around Ex=20 MeV studied by polarised neutron scattering from 12C

Journal Article Journal of Physics G Nuclear Physics · December 1, 1987 Analysing-power for elastic scattering of neutrons from 12C have been obtained at selected angles in small energy steps between incident energies of 15.55 and 17.35 MeV. The excitation energy, spin and parity of levels in 13C have bee ... Full text Cite

Comparisons of vector analyzing-power data and calculations for neutron-deuteron elastic scattering from 10 to 14 MeV

Journal Article Few Body Systems · March 1, 1987 High-accuracy analyzing-power Ay(θ) data for n-d elastic scattering at 12 MeV have been measured using the polarized-neutron facilities at the Triangle Universities Nuclear Laboratory (TUNL). The present data have been combined with our previous ... Full text Cite

Nanosecond-exposure electron microscopy of laser-induced phase transformations

Journal Article Ultramicroscopy · January 1, 1987 Flash electron microscopy with exposure times of 10-20 ns was realized by installing a beam-blanking unit and a gated image intensifier in a commercial TEM. This technique was applied to laser-induced phase transitions in amorphous Ge films. Intermediate s ... Full text Cite

A PULSED IMAGE CONVERTER FOR NANOSECOND ELECTRON-MICROSCOPY

Journal Article SCANNING MICROSCOPY · January 1, 1987 Link to item Cite

SHORT-INTERVAL ELECTRON-MICROSCOPY AND PULSED LASERS

Journal Article EUROPEAN JOURNAL OF CELL BIOLOGY · January 1, 1987 Link to item Cite

TIME RESOLVED TEM OF LASER-INDUCED PHASE TRANSITIONS IN a-Ge AND a-Si/Al-FILMS.

Conference Materials Research Society Symposia Proceedings · December 1, 1986 This paper presents an improved new method for studying the dynamics of laser induced phase transitions down to the submicron-nanosecond scale by means of a modified commercial Transmission Electron Microscope (TEM). Results on Pulsed Laser Annealing (PLA) ... Cite

Measurement of the response of the deuterated scintillators NE 232 and NE 230 to protons and deuterons

Journal Article Nuclear Inst and Methods in Physics Research A · April 1, 1986 The response of the deuterated scintillators NE 232 and NE 230 to protons and deuterons has been measured via elastic neutron-proton and neutron-deuteron scattering using the two mixtures of C6H12/C6D12 and C Full text Cite

Coupled-channel analysis of nucleon scattering from sup40Ca up to 80 MeV.

Journal Article Physical review. C, Nuclear physics · April 1986 Full text Cite

Phase-shift-analysis approach to elastic neutron scattering from 12C between 9 and 12 MeV

Journal Article Journal of Physics G Nuclear Physics · December 1, 1985 The excitation energy, spin and parity of levels in 13C have been determined for excitation energies between 13 and 16 MeV via a phase-shift analysis of the measured total cross section, elastic differential cross section and analysing power for ... Full text Cite

Fast neutron scattering from hydrogen and carbon

Journal Article Nuclear Inst and Methods in Physics Research B · May 15, 1985 A method is described to measure the n-p differential cross section between 14 and 20 MeV precisely in order to determine the 1p1 nueleon-nucleon phase shift. To clarify the influence of F-wave phase shifts on n-p scattering at 16.9 M ... Full text Cite

Kinetics of laser‐induced liquid metal etching of a‐Si films

Journal Article Physica Status Solidi A · January 1, 1985 It ist demonstrated that spatially modulated laser pulse‐induced melting of semiconductor/metal films can be used to generate micropatterns in semiconductors. The kinetics of the phase transitions are traced by time‐resolved electron microscopy down to spe ... Full text Cite

Metal‐Assisted Grain Growth in Beam Crystallized Amorphous Ge/Au Films

Journal Article Physica Status Solidi A · January 1, 1985 Full text Cite

THE IMAGINARY PART OF THE SPIN-ORBIT INTERACTION FOR NEUTRON-NUCLEUS SCATTERING

Journal Article AIP CONFERENCE PROCEEDINGS · January 1, 1985 Link to item Cite

A neutron-proton spin correlation experiment at 14 MeV

Journal Article Journal of Physics G Nuclear Physics · December 1, 1984 A polarised-beam-polarised-target experiment to measure the n-p spin correlation coefficient Ayy at 14 MeV and 90 degrees CM is described briefly. It differs from previous experiments in that both scattered neutron and recoil proton are detected ... Full text Cite

Levels of 13C near Ex=12 meV from elastic n+ 12C scattering

Journal Article Journal of Physics G Nuclear Physics · December 1, 1983 The excitation energies, spins, parities, total widths and neutron elastic scattering widths of seven T=1/2 levels of 13C at excitation energies between 11.5 and 12.5 MeV have been determined via a phase-shift analysis of n ... Full text Cite

Effect of Couplings to Giant Resonances on the Elastic and Nonelastic Scattering of Fast Neutrons.

Conference Commission of the European Communities Report Eur · December 1, 1983 Cite

Comparison of polarization and analyzing power for the 15N(p, n)15O reaction

Journal Article Nuclear Physics Section A · November 21, 1983 The analyzing power Ay(θ) and polarization Py(θ) for the 15N(p, n0)15O reaction have been measured for Ep = 4.5-11.3 MeV. The values of the two observables are nearly the same above 11 MeV, ... Full text Cite

Sensitivity of neutron scattering properties to the coupling to giant resonances

Journal Article Physical Review C · January 1, 1983 Extended coupled channels calculations have been performed for neutron elastic and inelastic cross sections and analyzing powers for vibrational nuclei with 40 Full text Cite

The analyzing power Ay[(θ) for 12C(n, n0,1)12C between 8.9 and] 14.9 MeV neutron energy

Journal Article Nuclear Physics Section A · January 1, 1983 The analyzing power Ay(θ) for 12C(n,n)12C elastic scattering and for inelastic scattering to the first excited state (Jπ = 2+, Q = -4.44 MeV) of 12C was measured in the energy range from 8.9 ... Full text Cite

Measurements of analyzing power for H2(n, n)H2 scattering at 14.1 MeV and comparisons to H2(p, p)H2

Journal Article Physical Review C · January 1, 1983 Data for the analyzing power Ay() for the elastic scattering of neutrons from deuterons have been measured at 14.1 MeV for the range from 30°to 153°(c.m.) to accuracies between 0.003 and 0.006. The results are compared to previous n-d data at 14 MeV and ar ... Full text Cite

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Journal Article Phys. Rev. C · 1983 Cite

Analysing power for 28Si(n, n0, 1)28Si and sensitivity of spin-orbit potential parameters

Journal Article Journal of Physics G Nuclear Physics · January 1, 1983 The analysing power Ay(theta) for elastic and inelastic (2+, E*=1.78 MeV) neutron scattering from Si was measured at 14.1 MeV. The data were analysed together with published differential cross sections using the coupled-channels forma ... Full text Cite

Analyzing power and differential cross section at 9.9, 11.9 and 13.9 MeV for Ca(n, n)Ca

Journal Article Nuclear Physics Section A · September 13, 1982 The analyzing power and differential cross section for elastic neutron scattering from calcium have been measured at 9.9, 11.9 and 13.9 MeV using the 2H(d, n)3He source reaction and neutron time-of-flight (t.o.f.) techniques to detect ... Full text Cite

Analyzing power measurements for (H2(npol,n)H2) scattering at 10 MeV compared to few-nucleon calculations and data for (H2(ppol,p)H2) scattering

Journal Article Physical Review Letters · January 1, 1982 The analyzing power Ay() for scattering of neutrons from deuterons at 10 MeV for 30°to 145°(c.m.) was measured to an accuracy better than 0.005. The results are compared to published p-d data at 10 MeV, and convincing differences are noted for the first ti ... Full text Cite

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Journal Article Phys. Rev. Lett. · 1982 Cite

Small-angle neutron polarization for the 2H(d, n)3He reaction near Ed = 8 MeV

Journal Article Nuclear Instruments and Methods · December 15, 1981 Considerable improvement in the quality of analyzing power experiments performed with polarized fast neutrons has been achieved during the last few years by using neutrons from the polarization transfer reaction 2H(d, n)3He at a react ... Full text Cite

Comparison of analyzing power and polarization in the reaction 3H(p, n)3He. (II). New polarization results below 4 MeV

Journal Article Nuclear Physics Section A · November 30, 1981 The polarization Py for the 3H(p, n)3He reaction was measured for energies between 2 and 4 MeV. Special care was given to minimizing the effects of background and to interpreting the experimental spectra. The new values for ... Full text Cite

Polarization transfer in (d,n) reactions on light nuclei at =0°

Journal Article Physical Review C · January 1, 1981 Transverse vector polarization transfer coefficients Kyy have been measured at a reaction angle of 0°for the processes C12(d,n)N13, N14(d,n)O15, O16(d,n)F17, and Si28(d,n)P29. The deuteron beam energy ranged from about 5 to 15 MeV for most cases. For the C ... Full text Cite

Analyzing power measurements for n-p scattering between 13.5 and 16.9 MeV

Journal Article Nuclear Physics Section A · May 12, 1980 The analyzing power Aγ(θ) for neutron-proton scattering has been measured for θ = 90°(c.m.) from 13.5 to 16.9 MeV and from θ = 50° to 145°(c.m.) at 16.9 MeV. Extensive Monte Carlo calculations have been made to correct for multiple scattering ef ... Full text Cite

AGRICULTURAL-DEVELOPMENT IN THE COMECON COUNTRIES OF SOUTHEAST EUROPE

Journal Article BERICHTE UBER LANDWIRTSCHAFT · January 1, 1980 Link to item Cite

ELASTIC-SCATTERING OF PULSED POLARIZED NEUTRONS PRODUCED IN THE H-2(D,N)HE-3 REACTION

Journal Article BULLETIN OF THE AMERICAN PHYSICAL SOCIETY · January 1, 1980 Link to item Cite

(The development of agriculture in the socialist countries of South East Europe).

Journal Article Berichte Uber Landwirtschaft · January 1, 1980 Reviews post-war agricultural policies in the CMEA, particularly in Hungary, Bulgaria and Romania. Collectivization of various types covers 83.6% of Hungarian farm area and 75% of Bulgarian. State farms account for 14.8% in Hungary and 14% in Romania. Gene ... Cite

ELASTIC AND INELASTIC SCATTERING OF 7- TO 14-MeV NEUTRONS FROM LITHIUM-6 AND LITHIUM-7.

Journal Article Nucl Sci Eng · January 1, 1979 Differential cross sections are reported for the elastic and discrete inelastic scattering of neutrons from **6Li and **7Li. Source neutrons were provided by the **2H(d,n)**3He reaction in the energy range from 7 to 14 MeV. Scattered neutrons were detected ... Full text Cite

The analyzing power Aγ(θ) for the elastic scattering of 12 MeV neutrons from deuterons

Journal Article Nuclear Physics Section A · February 13, 1978 The analyzing power Aγ(θ) was obtained at 10° intervals between 30° (lab) to 120° (lab) for 2H(n, n)2H at 12.0 MeV. The polarized neutron beam employed in the measurement was obtained by using neutrons emitted at 0° from th ... Full text Cite

DIFFERENTIAL ELASTIC AND INELASTIC SCATTERING OF 7- TO 15-MeV NEUTRONS FROM BERYLLIUM.

Journal Article Nuclear Science and Engineering · January 1, 1978 Differential cross sections are reported for elastic and inelastic scattering of neutrons from beryllium. Source neutrons were provided by the D(d,n)**3He reaction at energies from 7 to 15 MeV in 1-MeV steps. Scattered neutrons were observed over a flight ... Full text Cite

Multiple scattering effects in fast neutron polarization experiments using high-pressure helium-xenon gas scintillators as analyzers

Journal Article Nuclear Instruments and Methods · November 1, 1977 In order to study multiple scattering effects both in the gas and particularly in the solid materials of high-pressure gas scintillators, two asymmetry experiments have been performed by scattering of 15.6 MeV polarized neutrons from helium contained in st ... Full text Cite

DIFFERENTIAL ELASTIC-SCATTERING OF 9.25-15.0MEV NEUTRONS FROM OXYGEN

Conference BULLETIN OF THE AMERICAN PHYSICAL SOCIETY · January 1, 1977 Link to item Cite

Discrepancies between global nucleon-nucleon phase shifts and new data for n-p scattering at 16.9 MeV

Journal Article Physical Review Letters · January 1, 1977 Data for the analyzing power Ay(θ) for n-p scattering at 16.9 MeV have been measured for the range from 50 to 145>°(c.m.). Eleven values are reported to an accuracy of about ±0.002, the highest overall precision ever obtained in any fast-neutron polarizati ... Full text Cite

ELASTIC-SCATTERING OF POLARIZED NEUTRONS FROM HYDROGEN AND DEUTERIUM

Conference BULLETIN OF THE AMERICAN PHYSICAL SOCIETY · January 1, 1977 Link to item Cite

HIGH ACCURACY MEASUREMENTS OF N-P ANALYZING POWER AY (THETA) AT 16.9 MEV

Conference BULLETIN OF THE AMERICAN PHYSICAL SOCIETY · January 1, 1977 Link to item Cite

Properties of high pressure nitrogen-argon and nitrogen-xenon gas scintillators

Journal Article Nuclear Instruments and Methods · March 15, 1976 Investigations of scintillation light output and energy resolution have been made at pressures up to 90 atm in gaseous mixtures of nitrogen with both argon and xenon by stopping of 210Po-alpha particles. In the absence of a wavelength shifter, t ... Full text Cite

Equality of analyzing power and polarization in the reaction H3(p, n)3He

Journal Article Physical Review Letters · January 1, 1976 The quantities Ay and Py were remeasured for Ep<4 MeV in the reaction H3(p, n)3He. Although our Ay data confirm previous data, our Py values are appreciably larger than earlier results and in fact agree well with those for Ay. Elimination of the previously ... Full text Cite

ELASTIC-SCATTERING OF POLARIZED PROTONS FROM HE-4 AT 6.35 MEV

Conference BULLETIN OF THE AMERICAN PHYSICAL SOCIETY · January 1, 1976 Link to item Cite

Remeasurement of py for the H2(d,n→)He3 reaction and its bearing on the reported f-wave admixture of the lowest 2- state in He4

Journal Article Physical Review C · January 1, 1976 The polarization of neutrons from the reaction H2(d,n→)He3 has been measured for a deuteron energy Ed=2.44 MeV at emission angles of 45A and 55A(lab). The polarization values are discussed in relation both to previously reported discrepant data and to meas ... Full text Cite

DIFFERENTIAL ELASTIC AND INELASTIC-SCATTERING OF 7.5 TO 14. MEV NEUTRONS FROM LI-6

Conference BULLETIN OF THE AMERICAN PHYSICAL SOCIETY · January 1, 1976 Link to item Cite

REMEASUREMENT OF PY IN T(P,N)HE-3 REACTION BELOW 1 MEV

Conference BULLETIN OF THE AMERICAN PHYSICAL SOCIETY · January 1, 1976 Link to item Cite

POLARIZATION AT 90DEGREES CM IN N-P SCATTERING FOR EN=13.5 AND 16.0 MEV

Conference BULLETIN OF THE AMERICAN PHYSICAL SOCIETY · January 1, 1976 Link to item Cite

COMPARISON OF POLARIZATION AND ANALYZING POWER IN (P,N) MIRROR REACTIONS ON N-15 AND BE-9

Conference BULLETIN OF THE AMERICAN PHYSICAL SOCIETY · January 1, 1976 Link to item Cite

ELASTIC AND INELASTIC-SCATTERING OF NEUTRONS FROM LI-7

Conference BULLETIN OF THE AMERICAN PHYSICAL SOCIETY · January 1, 1976 Link to item Cite

Simulation of a double-scattering polarization experiment with fast neutrons by means of Monte Carlo calculations

Journal Article Nuclear Instruments and Methods · April 15, 1975 Monte Carlo techniques were used to calculate asymmetry values of a fast-neutron double-scattering experiment with 4He scintillators, recently performed to compare the experimental results with predictions resulting from various n-4He ... Full text Cite

Fast neutron double scattering on4He

Journal Article Zeitschrift Fur Physik · October 1, 1974 The asymmetry of 15 MeV neutrons has been measured after successive scattering from two high-pressure helium gas scintillators. The experimental result is compared with predictions of various n-4He phase shift sets. The phases of Hoop and Barsch ... Full text Cite

Fast neutron double scattering from 4He

Journal Article Physics Letters B · April 2, 1973 The asymmetry of 15 MeV neutrons has been measured after successive scattering from two high-pressure helium gas scintillators. The experimental result is compared with predictions of various n-4He phase shift sets. The phases of Hoop and Barsch ... Full text Cite

The reaction54Xe(n, α)52Te at neutron energies from 12.5 to 18.0 MeV

Journal Article Zeitschrift Fur Physik · August 1, 1967 The reaction54Xe(n, α)52Te was investigated in the neutron energy range 12.5 to 18.0 MeV. A high pressure gas scintillator filled either with pure xenon of natural isotopic abundance or with a mixture of xenon and helium was used as a ... Full text Cite

Ein hochdruck-gasszintillationszähler mit ortsunabhängiger impulshöhe

Journal Article Nuclear Instruments and Methods · January 1, 1967 A high pressure gas scintillator of large volume (400 cm3) is described, the pulse height of which is independent of the point of scintillation within 2%. This is accomplished by the use of two photomultipliers in coincidence. Additionally, the ... Full text Cite