Research and development on environmental radionuclides for nuclear non-proliferation at Japan Atomic Energy Agency

Usuda, Shigekazu; Shinohara, Nobuo ; Sakurai, Satoshi ; Magara, Masaaki  ; Miyamoto, Yutaka   ; Esaka, Fumitaka  ; Yasuda, Kenichiro   ; Kokubu, Yoko   ; Hirayama, Fumio; Lee, C. G.; Inagawa, Jun; Suzuki, Daisuke   ; Iguchi, Kazunari; Oda, Tetsuzo; Kumata, Masahiro; Yamamoto, Yoichi 

For the purpose of controlling and monitoring radiations and radioactive materials emitted from nuclear facilities to the environment and also evaluating their effects, various R&D on environmental radioactivity has been carried out at Japan Atomic Energy Agency (JAEA). Especially, for the abolition of nuclear weapons and for peaceful uses nuclear energy, ultra-trace analysis of environmental samples for safeguards and ultra-high sensitive monitoring of radionuclides for the CTBT verification, which have been scheduled in the middle of 1990s, have been promotted under the auspices of the Japanese Government at JAERI, the former of JAEA. In this presentation, the outline of R&D on environmental radioactivity for nuclear non-proliferation is introduced. In addition, applications of the developed techniques and future perspectives will be discussed.