Application of CANDU Failed Fuel Inspection System and Technology

摘要

KNF(KEPCO Nuclear Fuel Co., Ltd) developed two equipments to investigate the integrity of CANDU irradiated fuels. The first one is a sipping system that evaluates fission products leaked from fuel rods. The second one is a visual system with remotely controlled devices in the bay water. The system has successfully proved that it is enough to find the failed fuel just discharged from reactor as well as which are cooled for more than 15 years in the spent fuel bay of a plant. This paper describes the results of the failed fuel detection technology and its application through mainly evaluation of fission products leaked from the failed fuels.