INVESTIGATION ON URANIUM-DIOXIDE DISTRIBUTION DISSOLVED IN SILICATE COMPOSITIONS USING SOLID-STATE NUCLEAR TRACE DETECTORS

The method of solid state nuclear track detectors (SSNTD) has been use d for the determination of uranium dioxide distribution in silicate co mpositions. The method of alpha-radiography based on registration of a lpha- particles at the contact of SSNTD CR-39 with the specimen has be en used here. An initial uranium dioxide applied for studying the diss olving process used as the standard. The results of the measurements o f distribution of uranium dioxide concentration obtained with the help of this technique have been used for the estimation of diffusion and solubility of UO2 in silicate melts.