METHOD OF INSPECTING URANIUM OXIDES UO AND UO FOR IMPURITIES Russian patent published in 2016 - IPC G21C21/00 G21C3/00 

FIELD: nuclear power.

SUBSTANCE: invention relates to production of nuclear oxide uranium fuel, can be used for determining quality of single-component uranium oxides U₃O₈ and UO₂ in factory conditions. Method of inspecting uranium oxides UO₂ and U₃O₈ for impurities comprises exposing one or more weighed portions of a uranium oxide sample to microwave radiation for 8-12 minutes with radiation frequency of 2.45 GHz and power of 550-650 W in an oxidative medium and one or more weighed portions in reducing medium. Treated weighed portions are cooled. Data on their weight is obtained and, by comparing obtained results with limit theoretical values of weight change, presence or absence of impurities of uranium oxides is determined, and total content of other inert impurities is estimated.

EFFECT: invention makes it possible to create a simple method for rapid inspection of uranium oxides.

6 cl, 2 dwg, 1 tbl, 2 ex