Self-Consistent Criteria for Evaluation of Neutron Interaction

Henry H.F,Newlon C.E.,Knight J.R.

关键词: CONTAINERS;    EVALUATION;    FISSIONABLE MATERIALS;    HIGHLY ENRICHED URANIUM;    MULTIPLICATION FACTORS;    NEUTRONS;    ORGDP;    RADIATION PROTECTION Self-Consistent Criteria;    Neutron Interaction;    ORGDP;    AEC Research;   

DOI  :  10.2172/969807
RP-ID  :  K-1317
PID  :  OSTI ID: 969807
Others  :  TRN: US1000700

学科分类：环境科学（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

New safe interaction criteria for containers of fissionable materials handled at the Oak Ridge Gaseous Diffusion Plant have been developed on the basis of an interaction theory using the basic concepts of a safe solid angle subtended by interacting containers, and the multiplication factor as determined by two-group theory for an individually safe containers The calculated results agree satisfactorily with experimental data obtained with identical interacting units involving both cylinders and slabs containing highly enriched uranium, the core compositions of which were varied between H/U-235 atomic ratios of 44.3 and 337. The application of the derived interaction criteria to items containing material with low moderation or low U-235 assay, and to containers for which nuclear safety is dependent upon control of the U-235 mass or U-235 concentration is discussed.