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Title: Review of the neutron capture process in fission reactors

Abstract

The importance of the neutron capture process and the status of the more important cross section data are reviewed. The capture in fertile and fissile nuclei is considered. For thermal reactors the thermal to epithermal capture ratio for /sup 238/U and /sup 232/Th remains a problem though some improvements were made with more recent measurements. The capture cross section of /sup 238/U in the fast energy range remains quite uncertain and a long standing discrepancy for the calculated versus experimental central reaction rate ratio C28/F49 persists. Capture in structural materials, fission product nuclei and the higher actinides is also considered.

Authors:
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
OSTI Identifier:
5276339
Report Number(s):
ANL/NDM-59
ON: DE82009833; TRN: 82-015876
DOE Contract Number:  
W-31-109-ENG-38
Resource Type:
Technical Report
Resource Relation:
Other Information: Portions of document are illegible
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; CROSS SECTIONS; REACTOR KINETICS; THERMAL REACTORS; POWER DISTRIBUTION; REACTOR CORES; THORIUM 232; URANIUM 238; ACTINIDE ISOTOPES; ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; EVEN-EVEN NUCLEI; HEAVY NUCLEI; ISOTOPES; KINETICS; NUCLEI; RADIOISOTOPES; REACTOR COMPONENTS; REACTORS; THORIUM ISOTOPES; URANIUM ISOTOPES; YEARS LIVING RADIOISOTOPES; 220100* - Nuclear Reactor Technology- Theory & Calculation

Citation Formats

Poenitz, W P. Review of the neutron capture process in fission reactors. United States: N. p., 1981. Web. doi:10.2172/5276339.
Poenitz, W P. Review of the neutron capture process in fission reactors. United States. https://doi.org/10.2172/5276339
Poenitz, W P. 1981. "Review of the neutron capture process in fission reactors". United States. https://doi.org/10.2172/5276339. https://www.osti.gov/servlets/purl/5276339.
@article{osti_5276339,
title = {Review of the neutron capture process in fission reactors},
author = {Poenitz, W P},
abstractNote = {The importance of the neutron capture process and the status of the more important cross section data are reviewed. The capture in fertile and fissile nuclei is considered. For thermal reactors the thermal to epithermal capture ratio for /sup 238/U and /sup 232/Th remains a problem though some improvements were made with more recent measurements. The capture cross section of /sup 238/U in the fast energy range remains quite uncertain and a long standing discrepancy for the calculated versus experimental central reaction rate ratio C28/F49 persists. Capture in structural materials, fission product nuclei and the higher actinides is also considered.},
doi = {10.2172/5276339},
url = {https://www.osti.gov/biblio/5276339}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jul 01 00:00:00 EDT 1981},
month = {Wed Jul 01 00:00:00 EDT 1981}
}