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Tritium production in a sphere of /sup 6/LiD irradiated by 14-MeV neutrons. [Cross sections]

Journal Article · · Nucl. Sci. Eng.; (United States)
OSTI ID:6132717
The specific production of tritium in a 600-mm-diam sphere of /sup 6/LiD irradiated by a central source of 14-MeV neutrons was determined by measuring the tritium radioactivity in samples of /sup 6/LiH and /sup 7/LiH embedded in the sphere. Results are reported for several samples of each isotope at each of five different radii in the assembly. The entire process of decomposing the LiH samples, transferring the evolved gas into counters, and determining the decay rate was standardized by processing LiH samples irradiated by thermal neutrons, for which the /sup 6/Li(n,..cap alpha..) cross section is well known. These experiments provide benchmark measurements for checking calculations of neutron transport and tritium production in /sup 6/LiD. Tritium production in each ampule, as calculated using a three-dimensional Monte Carlo code, is in reasonable agreement with the experiment. For /sup 7/Li, discrepancies between calculation and experiment seem to be due to errors in the tritium production cross sections. 19 references.
Research Organization:
Univ. of California, Los Alamos, NM
OSTI ID:
6132717
Journal Information:
Nucl. Sci. Eng.; (United States), Journal Name: Nucl. Sci. Eng.; (United States) Vol. 70:3; ISSN NSENA
Country of Publication:
United States
Language:
English