Demonstration Test for Transporting Vitrified High-Level Radioactive Waste: Water Immersion Test

The national policy on the nuclear fuel cycle is based on the \"Long-Term Plan for Utilization of Nuclear Energy\" issued by the Atomic Energy Commission of Japan, and the basic policy on the nuclear fuel cycle is that spent fuel from light-water reactors (LWR) should be reprocessed. In line with this policy, some spent fuel has been reprocessed overseas, and high-level radioactive wastes (HLW) have been generated by such reprocessing. Some of the highlevel radioactive wastes have been returned by sea transport. In order to ensure the safe transport of high-level radioactive wastes, demonstration tests stipulated by the International Atomic Energy Agency (IAEA) transport regulation were carried out in the Central Research Institute of Electric Power Industry. This paper describes the water immersion test. This work was conducted under a contract from the Science and Technology of Japan.