Status of J-PARC transmutation experimental facility

Sasa, Toshinobu   ; Sugawara, Takanori  ; Nishihara, Kenji  ; Takei, Hayanori   ; Oigawa, Hiroyuki 

Construction of the Transmutation Experimental Facility (TEF) is planned within the framework of J-PARC project. In the current schedule, we are planning to install the critical assembly with a 30kW beam dump at the first phase and the lead-bismuth target facility with superconducting LINAC will be built at the latter phase. Based on this construction plan, JAEA collected the preliminary Letters Of Intent (LOI) for TEF. More than 30 research programs were proposed. According to these proposals, the re-arrangement of facility layout and the new experimental equipment design are now underway. One of the important developments is to prepare for the application of minor actinide fuels to critical assembly. The development of the technology to handle the high-background minor actinide fuel is being performed. Another important issue is the pulse operation of critical assembly under subcritical condition. The laser charge exchange technique and measurement system for pulse operation are also under development. The latest facility concept reflecting these efforts and user requests based on LOI will be introduced.