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TWO-REGION EXPERIMENTS IN SLIGHTLY ENRICHED WATER-MODERATED URANIUM AND URANIUM DIOXIDE LATTICES

Technical Report ·
OSTI ID:4310156
The two-region critical configuration contained a subregion of uranium dioxide fuel, 0.384 in. in diameter, arranged in a hexagonal lattice to give a water-touranium volume ratio of 4.9. This subregion was surrounded by a lattice containing uranium metal rods, 0.387 in. in dinmeter with a water-to-uranium volume ratio of 2.35. Both fuels were enriched to 1.3 wt. % U/sup 235/. Radial neutron flux distributions were calculated by means of a one-dimensional, few- group diffusion equation code for two different subregions. Measurements of the thermal utilization, resonance escape probability, and fast fission factors have been made. (W. D. M.)
Research Organization:
Westinghouse Electric Corp. Bettis Plant, Pittsburgh
DOE Contract Number:
AT(11-1)-GEN-14
NSA Number:
NSA-12-014263
OSTI ID:
4310156
Report Number(s):
WAPD-TM-120
Country of Publication:
United States
Language:
English