The Burnable Poisons Utilization for Fissile Enriched CANDU Fuel Bundle

Abstract

Utilization of burnable poison for the fissile enriched fueled CANDU 6 Mk1 core is investigated. The main incentives for this analysis are the reduction of void reactivity effects, the maximization of the fissile content of fresh fuel bundle and the achievement of better power shape control, in order to preserve the power envelope of the standard 37 rod fuel bundle. The latter allows also the preservation of construction parameters of the standard core (for example: number and location of reactivity devices). It also permits the use of regular shift fueling schemes. The paper makes an analysis of MOX- weapons-grade plutonium- and 1.2% SEU fueled CANDU 6 Mk 1 core.