MANUFACTURING METHOD OF URANIUM 233, MANUFACTURING METHOD OF THORIUM NUCLEAR FUEL, MANUFACTURING METHOD OF MEDICAL RADIO ISOTOPE AND MANUFACTURING METHOD OF TARGET PLATE FOR MANUFACTURING MEDICAL RADIO ISOTOPE

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing method of uranium 233 having a composition ratio of uranium 233 of 99% or more.SOLUTION: A manufacturing method of uranium 233 includes: a neutron irradiation process 10 of nuclear transformation of thorium 232 atom nuclear of 0.1 to 1% of the total number of thorium 232 atom nuclear contained in a thorium aggregate 100 to proto actinium 233 atom nuclear by irradiating neutron to the thorium aggregate 100 consisting of metal thorium or a thorium inclusion; a storage process 20 of thorium aggregate to be irradiated for storing for a period 5 times or more of half life which proto actinium 233 atom nuclear decays to uranium 233 atom nuclear; and a uranium extraction process 30 for extracting uranium 233 from the thorium aggregate 100.