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

Publication ,  Journal Article
Tonchev, AP; Angell, CT; Boswell, M; Crowell, AS; Fallin, B; Hammond, S; Howell, CR; Hutcheson, A; Karwowski, HJ; Kelley, JH; Pedroni, RS ...
Published in: Physical Review C - Nuclear Physics
May 27, 2008
Published version (DOI)

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(d,n)He3 reaction by bombarding a pressurized deuterium gas cell with an energetic deuteron beam at the TUNL 10-MV Van de Graaff accelerator facility. The induced γ-ray activity of Am240 was measured with high-resolution HPGe detectors. The cross section was determined relative to Al, Ni, and Au neutron activation monitor foils, measured in the same geometry. Good agreement is obtained with previous measurements at around 9 and 14 MeV, whereas for a large discrepancy is observed when our data are compared to those reported by Perdikakis near 11 MeV. Very good agreement is found with the END-B/VII evaluation, whereas the JENDL-3.3 evaluation is in fair agreement with our data. © 2008 The American Physical Society.

Duke Scholars

John H Kelley
Author John H Kelley Physics
Alex Crowell
Author Alex Crowell  
Calvin R. Howell
Author Calvin R. Howell Physics
Werner Tornow
Author Werner Tornow Physics

Published In

Physical Review C - Nuclear Physics

DOI

10.1103/PhysRevC.77.054610

EISSN

1089-490X

ISSN

0556-2813

Publication Date

May 27, 2008

Volume

77

Issue

5

Related Subject Headings

  • Nuclear & Particles Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
 

Citation

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Tonchev, A. P., Angell, C. T., Boswell, M., Crowell, A. S., Fallin, B., Hammond, S., … Wilhelmy, J. B. (2008). Measurement of the Am241(n,2n) reaction cross section from 7.6 MeV to 14.5 MeV. Physical Review C - Nuclear Physics, 77(5). https://doi.org/10.1103/PhysRevC.77.054610
Tonchev, A. P., C. T. Angell, M. Boswell, A. S. Crowell, B. Fallin, S. Hammond, C. R. Howell, et al. “Measurement of the Am241(n,2n) reaction cross section from 7.6 MeV to 14.5 MeV.” Physical Review C - Nuclear Physics 77, no. 5 (May 27, 2008). https://doi.org/10.1103/PhysRevC.77.054610.
Tonchev AP, Angell CT, Boswell M, Crowell AS, Fallin B, Hammond S, et al. Measurement of the Am241(n,2n) reaction cross section from 7.6 MeV to 14.5 MeV. Physical Review C - Nuclear Physics. 2008 May 27;77(5).
Tonchev, A. P., et al. “Measurement of the Am241(n,2n) reaction cross section from 7.6 MeV to 14.5 MeV.” Physical Review C - Nuclear Physics, vol. 77, no. 5, May 2008. Scopus, doi:10.1103/PhysRevC.77.054610.
Tonchev AP, Angell CT, Boswell M, Crowell AS, Fallin B, Hammond S, Howell CR, Hutcheson A, Karwowski HJ, Kelley JH, Pedroni RS, Tornow W, Becker JA, Dashdorj D, Kenneally J, MacRi RA, Stoyer MA, Wu CY, Bond E, Chadwick MB, Fitzpatrick J, Kawano T, Rundberg RS, Slemmons A, Vieira DJ, Wilhelmy JB. Measurement of the Am241(n,2n) reaction cross section from 7.6 MeV to 14.5 MeV. Physical Review C - Nuclear Physics. 2008 May 27;77(5).

Published In

Physical Review C - Nuclear Physics

DOI

10.1103/PhysRevC.77.054610

EISSN

1089-490X

ISSN

0556-2813

Publication Date

May 27, 2008

Volume

77

Issue

5

Related Subject Headings

  • Nuclear & Particles Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics