Temperature dependence of thermal diffusion length for plutonium-beryllium neutrons in borated water.
Frew, John Archibald
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The temperature dependence of diffusion length for PU-BE neutrons in distilled water poisoned with boric acid was studied using concentrations of 1.0, 8.0, 16.0, and 30.0 grams per liter. Runs at each concentration were made at temperatures of 95, 131, and 167° F. The trend of temperature dependence was clearly established. A theoretical temperature dependence of k², where k=1/L is proposed using a Maxwellian distribution and found to be in good agreement with the data reported in Reference .
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