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Standard methods for estimating the thermal neutron absorption cross section of nuclear graphite

Journal Article · · Annu. Book ASTM Stand.; (United States)
OSTI ID:7330750
Three methods of estimating the neutron absorption cross section, sigma/sub a/, of graphite to be used for moderator or reflector components of nuclear reactors and subcritical test reactors and for thermal columns are described. The methods described are for boron and ash, common impurities, and Delta-in-Hours (DIH) purity. The DIH purity test is the most reliable. Poison factors are given for Al, B, Ca, Fe, Si, Ti, V, and ash. (BLM)
OSTI ID:
7330750
Journal Information:
Annu. Book ASTM Stand.; (United States), Journal Name: Annu. Book ASTM Stand.; (United States) Vol. 45; ISSN ASTSA
Country of Publication:
United States
Language:
English