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

Publication ,  Journal Article
Stephenson, SL; Crawford, BE; Furman, WI; Lychagin, EV; Muzichka, AY; Nekhaev, GV; Sharapov, EI; Shvetsov, VN; Strelkov, AV; Levakov, BG ...
Published in: 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. Thermal neutrons are mostly scattering not from other neutrons but instead from the desorbed gas molecules. Analysis of the obtained neutron time-of-flight spectra suggests neutron scattering from H2 molecules. The presented desorption model agrees with our experimental value of the desorption yield ηγ=0.02 molecules/gamma. Possible techniques to reduce the effect of the desorption background are presented.

Duke Scholars

Published In

Nuclear Physics A

DOI

ISSN

0375-9474

Publication Date

December 1, 2012

Volume

895

Start / End Page

33 / 43

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5106 Nuclear and plasma physics
  • 5101 Astronomical sciences
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences
 

Citation

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Stephenson, S. L., Crawford, B. E., Furman, W. I., Lychagin, E. V., Muzichka, A. Y., Nekhaev, G. V., … Showalter-Bucher, R. A. (2012). Experiment on direct n-n scattering – the radiation-induced outgassing complication. Nuclear Physics A, 895, 33–43. https://doi.org/10.1016/j.nuclphysa.2012.09.005
Stephenson, S. L., B. E. Crawford, W. I. Furman, E. V. Lychagin, A. Y. Muzichka, G. V. Nekhaev, E. I. Sharapov, et al. “Experiment on direct n-n scattering – the radiation-induced outgassing complication.” Nuclear Physics A 895 (December 1, 2012): 33–43. https://doi.org/10.1016/j.nuclphysa.2012.09.005.
Stephenson SL, Crawford BE, Furman WI, Lychagin EV, Muzichka AY, Nekhaev GV, et al. Experiment on direct n-n scattering – the radiation-induced outgassing complication. Nuclear Physics A. 2012 Dec 1;895:33–43.
Stephenson, S. L., et al. “Experiment on direct n-n scattering – the radiation-induced outgassing complication.” Nuclear Physics A, vol. 895, Dec. 2012, pp. 33–43. Scopus, doi:10.1016/j.nuclphysa.2012.09.005.
Stephenson SL, Crawford BE, Furman WI, Lychagin EV, Muzichka AY, Nekhaev GV, Sharapov EI, Shvetsov VN, Strelkov AV, Levakov BG, Lyzhin AE, Chernukhin YI, Howell CR, Mitchell GE, Tornow W, Showalter-Bucher RA. Experiment on direct n-n scattering – the radiation-induced outgassing complication. Nuclear Physics A. 2012 Dec 1;895:33–43.
Journal cover image

Published In

Nuclear Physics A

DOI

ISSN

0375-9474

Publication Date

December 1, 2012

Volume

895

Start / End Page

33 / 43

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5106 Nuclear and plasma physics
  • 5101 Astronomical sciences
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences