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U.S. Department of Energy
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FORMATION OF U-232 DURING THE IRRADIATION OF THORIUM

Technical Report ·
OSTI ID:4332896
The formation of U/sup 232/ by (n,2n) reactions in pileirradiated thorium is discussed. For thorium irradiated in a heterogeneous reactor, the total U/sup 232/ formed is produced by fast neutrons from two sources: (a) those which originate in the surrounding fuel elements, and (b) those produced by the fissioning of U/sup 233/ in the thorium itself. A Monte Carlo calculation is used to estimate the effective (n,2n) flux in heavy water or graphite surrounding a point source of fission neutrons. The results for the point source are integrated to give the effect of a line source or, approximately, a fuel rod. (auth)
Research Organization:
Du Pont de Nemours (E.I.) & Co. Savannah River Lab., Augusta, Ga.
NSA Number:
NSA-12-013530
OSTI ID:
4332896
Report Number(s):
DP-279
Country of Publication:
United States
Language:
English

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