Contamination Transport in the Primary Coolant System During a Breached Fuel Pin Test in EBR-II

摘要

The release and transport behavior of contaminants can be interpreted in terms of two basic mechanisms: particulate entrainment and solution of volatile, short-lived precursors. Examination of the sampler indicates that for U, Pu, exp 95 Zr-Nb, exp 103 Ru, exp 106 Ru, exp 144 Ce, and exp 154 Eu particulate entrainment was the dominant mechanism in this test. The distributions of exp 141 Ce and exp 140 Ba-La deposits indicated both mechanisms were significant in the transport of these species. (ERA citation 06:006053)