Research and development programme on ADS in JAEA

Oigawa, Hiroyuki ; Nishihara, Kenji  ; Sasa, Toshinobu   ; Tsujimoto, Kazufumi ; Sugawara, Takanori  ; Iwanaga, Kohei; Kikuchi, Kenji; Kurata, Yuji; Takei, Hayanori   ; Saito, Shigeru   ; Hamaguchi, Dai; Obayashi, Hironari  ; Tazawa, Yujiro*; Tezuka, Masao; Ouchi, Nobuo 

JAEA has been promoting the research and development on accelerator-driven subcritical system (ADS) as a dedicated system for the transmutation of long-lived radioactive nuclides. The ADS proposed by JAEA is a lead-bismuth eutectic cooled, tank-type subcritical reactor with the thermal power of 800 MWth driven by a 30 MW superconducting linac. As for the design study of the future ADS, reduction of the maximum temperature of fuel claddings and verification of the feasibility of the beam window are under way. As for the Transmutation Experimental Facility (TEF) of the J-PARC project, design study including experimental device to deal with minor actinide fuels is being conducted. To facilitate the research and development on ADS, a common road map is necessary to be shared by international communities. The TEF program can play an important role in such an international context as an experimental platform to conduct basic and flexible experiments.