Cover: Statistical Model Calculations of Fe56 Neutron Cross Sections.

Statistical Model Calculations of Fe56 Neutron Cross Sections.

Published 1970

by S. D. Bloom, J. M. Green, H. W. Hubbard, S. A. Moszkowski

Purchase Print Copy

 Format Price
Add to Cart Paperback35 pages $20.00

Calculates certain neutron cross sections for Fe-56 and compares results with available experimental data. The unknown excited states of the daughter nucleus at states higher than the highest experimental results were characterized by means of Kanestrom's theory, which describes the number density of the high-lying states as a function of excitation energy and nuclear spin. The Kanestrom statistical model was grafted onto the NEARREX computer program (see RM-5899). The revised code generates excited states for both (n,p) and (nn') reactions and accounts for the competition between these reactions. The single particle level spacing, the spin parameter, and the pairing energy parameter were chosen to fit 4 independent sets of data: the experimental values for the distribution of excited states of Fe-56 and Mn-56, and also the total low energy (nn') and (n,p) cross sections on Fe-56. Subsequent calculations, based on these parameters, were self-consistent over a wide range of high neutron energies and agreed with the experimental data. 35 pp. Ref. (MW)

This report is part of the RAND report series. The report was a product of RAND from 1948 to 1993 that represented the principal publication documenting and transmitting RAND's major research findings and final research.

This document and trademark(s) contained herein are protected by law. This representation of RAND intellectual property is provided for noncommercial use only. Unauthorized posting of this publication online is prohibited; linking directly to this product page is encouraged. Permission is required from RAND to reproduce, or reuse in another form, any of its research documents for commercial purposes. For information on reprint and reuse permissions, please visit

RAND is a nonprofit institution that helps improve policy and decisionmaking through research and analysis. RAND's publications do not necessarily reflect the opinions of its research clients and sponsors.