Safeguards have been applied to the R&D process for directly fabricating CANDU fuel with PWRspent fuel material. Safeguards issues to be resolved were identified in the areas such as internationalcooperation on handling foreign origin nuclear material, technology development of operator'smeasurement system of the bulk handling process of spent fuel material, and a built-in C/S system forindependent verification of material flow. The fuel cycle concept (Direct Use of PWR spent fuel inCANDU, DUPIC) was developed in consideration of reutilization of over-flowing spent fuel resources atPWR sites and a reduction of generated high level wastes. All those safeguards issues have been finallyresolved, and the first batch of PWR spent fuel material was successfully introduced in the DUPIC labfacility and has been in use for routine process development.
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