Surrogate Measurement of the ²³⁸Pu(n,f) Cross Section

Authors

J. J. Ressler
J. T. Burke
J. Escher
C. Angell
M. S. Basunia
C. W. Beausang, University of RichmondFollow
L. A. Bernstein
D. L. Bleuel
R. J. Casperson
B. L. Goldblum
J. Gostic
R. Hatarik
R. Henderson
R. O. Hughes
J. Munson
L. Phair
T. J. Ross
N. D. Scielzo
E. Swanberg
I. Thompson
M. Wiedeking

DOI

10.1103/PhysRevC.83.054610

Abstract

The neutron-induced fission cross section of ²³⁸Pu was determined using the surrogate ratio method. The (n,f) cross section over an equivalent neutron energy range 5–20 MeV was deduced from inelastic α-induced fission reactions on ²³⁹Pu, with ²³⁵U(α,α′f) and ²³⁶U(α,α′f) used as references. These reference reactions reflect ²³⁴U(n,f) and ²³⁵U(n,f) yields, respectively. The deduced ²³⁸Pu(n,f) cross section agrees well with standard data libraries up to ~10 MeV, although larger values are seen at higher energies. The difference at higher energies is less than 20%.

Document Type

Article

Publication Date

5-19-2011

Publisher Statement

Copyright © 2011 The American Physical Society. This article first appeared in Physical Review C 83, no. 5 (May 19, 2011): 054610: 1-54610: 7. doi:10.1103/PhysRevC.83.054610.

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Recommended Citation

Ressler, J., J. Burke, J. Escher, C. Angell, M. Basunia, C. Beausang, L. Bernstein, D. Bleuel, R. Casperson, B. Goldblum, J. Gostic, R. Hatarik, R. Henderson, R. Hughes, J. Munson, L. Phair, T. Ross, N. Scielzo, E. Swanberg, I. Thompson, and M. Wiedeking. "Surrogate Measurement of the ²³⁸Pu(n,f) Cross Section." Physical Review C 83, no. 5 (May 19, 2011): 054610: 1-54610: 7. doi:10.1103/PhysRevC.83.054610.