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Review of thorium-U233 cycle thermal reactor benchmark studies

A survey is made of existing integral experiments for U233 systems and thorium-uranium based fuel systems. The aim is to understand to what extent they give a consistent test of ENDF/B-IV nuclear data. A principal result is that ENDF/B-IV leads to an underprediction of neutron leakage. Results from testing alternate thorium data sets are presented. For one evaluation due to Leonard, the results depict a possible growing discrepancy between measured integral parameters such as rho/sup 02/ and I/… more

Date: March 1, 1980

Creator: Ullo, J.J.; Hardy, J. Jr. & Steen, N.M.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

In-pile temperature dependence of the yield strength and growth of Zircaloy

A previously reported growth model is modified and low temperature growth predictions in Zircaloy are made to support the proposal that the smaller irradiation damage observed at lower temperature results from the damage sites, or depleted zones, being larger at lower temperatures. This proposal holds that the vacancies making up the zones cannot migrate at the lower temperature and, therefore, cannot condense into small voids or dislocation loops. The larger zones serve as better sinks for int… more

Date: March 1978

Creator: Dollins, C. C.