Activities on ADS at JAEA

Oigawa, Hiroyuki ; Nishihara, Kenji  ; Tsujimoto, Kazufumi ; Takei, Hayanori   ; Kikuchi, Kenji; Kurata, Yuji; Saito, Shigeru   ; Mizumoto, Motoharu; Sasa, Toshinobu   ; Sugawara, Takanori  ; Iwanaga, Kohei; Hamaguchi, Dai; Ouchi, Nobuo 

JAEA has been conducting the R&D on accelerator-driven subcritical system (ADS) as a dedicated system for the transmutation of long-lived radioactive nuclides. The ADS can co-exist with FBR symbiotically and complementarily to enhance the reliability and the safety of the commercial FBR cycle. The R&D activities in JAEA include neutronics, thermal-hydraulic and structural design, transient analysis in case of beam trips, development of spallation target using Pb-Bi, research on the materials, and cost estimation. In addition, the high-intensity proton accelerator project J-PARC is under construction. One of the main experimental facilities of the J-PARC is the Transmutation Experimental Facility (TEF), which is assigned as Phase-II of the project.