Semi-Direct Recycling of LWR Spent Fuel in Ultra-Long-Life Core Fast Reactor (UCFR)

摘要

It has been demonstrated that the LWR spent fuel can be almost directly recycled into a UCFR only after an extremely simple treatment of melting-and-casting process. But, the peak fast fluence in the UCFR is far beyond the actual limit of the currently available materials. Thus, it is strongly required to reduce the peak fast fluence in the core and advanced materials should be developed for realization of the UCFR.