Permission of alteration of nuclear fuel substance processing business in Japan Nuclear Fuel Co. Ltd

The Nuclear Safety Commission instructed the Committee on Examination of Nuclear Fuel Safety on November 28, 1985, to carry out the investigation and deliberation on this matter, received the report from the Committee on April 15, 1986, made its own deliberation, and thereafter, replied to the Prime Minister. It was recognized that the technical capability of the applicant is adequate. Also it was judged that the safety after the alteration of these processing facilities can be ensured. The policy of carrying out the investigation and deliberation is reported. The main matters investigated and deliberated were as follows. As the kinds of nuclear fuel substances to be processed, the uranium by re-enriching recovered uranium to less than 4 % degree of enrichment is added. The criticality control, waste treatment and radiation control related to this were examined, and confirmed to be safe. A part of the uranium oxide store is relieved from the control area. The facility for adding a small quantity of hydrocarbon to uranium oxide powder is installed in No.1 processing building. An oxidation experiment equipment and an end plug welding experiment apparatus are installed. The safety of these alterations was confirmed. (Kako, I.)