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Title: EFFECTIVE CROSS SECTION VALUES FOR WELL-MODERATED THERMAL REACTOR SPECTRA. (3RD EDITION CORRECTED)

Technical Report ·
OSTI ID:4118414

This document replaces the earlier versions (CRRP-680 and CRRP-787) and now employs the σ (E) information contained in Supplement 1 (1960) of the 2nd edition of BNL-325 and other data privately collected to a cut-off date of April 1, 1960. The compilation is also enlarged to include higher temperatures (thus superseding CRRP-862) and for the first time also includes s-factors calculated using the epithermal cut-off functions exhibiting a maximum at just above the cut-off energy, which have recently been indicated by Swedish and U.K. measurements, as well as by analysis of some calculated spectra. As in the earlier compilation, the notation of the author's Geneva Conference (1958) paper is used, the effective cross section σ being given in terms of the 2200 m/sec. value σo by the relation σ σo (g + rs), where g and s are the factors listed in this compilation and r is a measure of the proportion of epithermal neutrons in the reactor spectrum. (author)

Research Organization:
Atomic Energy of Canada Ltd., Chalk River, Ontario (Canada)
NSA Number:
NSA-15-003612
OSTI ID:
4118414
Report Number(s):
CRRP-960; EANDC(Can)-4; TNCC(Can)-30; AECL-1101-Rev
Resource Relation:
Other Information: This issue supersedes the uncorrected printing of the 3rd Edition dated September 1, 1960.; Related Information: Full text reflects corrections/revisions through 1970
Country of Publication:
Canada
Language:
English