Study of the possibilities of using low-enriched uranium in reactor technology of 99Mо accumulation at JSC “SSC RIAR”

Characteristics of the highly-enriched uranium targets of two types and irradiation tools currently used at JSC “SSC RIAR” to accumulate fission 99Мо are described. The parameters for 99Мо accumulation in the pool-type reactors are presented. Studies have been performed on possibility to convert 99Мо production to low-enriched uranium using the existing type targets. It is shown that at the achieved fuel density values of 99Мо accumulation yield decreases approximately by two times.