Nuclear Safety of Low-Flux and High-Flux Thorium Mode of CANDU-Type Reactor

Abstract

The U-233 accumulation in Th-232 in CANDU reactor with low and high neutron flux is studied. The effect ofU-233 increase in high flux is explained by the fact that U-233 is produced through intermediate short-lived Pa-233. The growth of multiplication factor after reactor shutdown connected with problem of nuclear safety is estimated.