METHOD FOR MEASURING CONTENT OF LANTHANIDE BASED ELEMENTS CONTAINED IN URANIUM OXIDE

摘要

PURPOSE: A method is provided to measure the content of lanthanide based elements contained in uranium oxide by measuring weight variation of a sintered body of nuclear material after oxidizing and heat-treating the sintered body of nuclear material. CONSTITUTION: In order to measure the content of lanthanide based elements contained in uranium oxide, weight variation of a sintered body of nuclear material is measured. Before measuring weight variation of the sintered body of nuclear material, an oxidation process and a heat-treatment process are carried out with respect to the sintered body of nuclear material. That is, the sintered body of nuclear material is oxidized at a pneumatic atmosphere and weight of powder obtained through the oxidation process is measured. Total weight of powder obtained through heat-treating the powders at the pneumatic atmosphere is measured.