Current status of the JAEA-AMS-TONO

Ishimaru, Tsuneari ; Kokubu, Yoko   ; Matsubara, Akihiro; Yasue, Kenichi; Doke, Ryosuke; Nishizawa, Akimitsu*; Owaki, Yoshio*; Nishio, Tomohiro*

The Japan Atomic Energy Agency (JAEA) installed the JAEA-AMS-TONO system in 1997 at Tono Geoscience Center. The system has routinely been used for C-AMS and has been developed for use in Be-AMS. Under the common-use facility program of JAEA, the system has also been available and used by researchers from universities and other institutes. In this presentation, we report current status of the system and the application studies. In fiscal year 2010, machine time for the Be-AMS was increased because we kicked into gear to technology development of the Be-AMS. For the C-AMS, 520 samples were measured and 87 of the samples were measured upon requests of 4 studies under the common-use facility program. The JAEA applied this C-AMS to geochronological studies such as estimation of sedimentation rate of soil and of retention time of ground water for research and development related to the geological disposal of high-level radioactive waste.