Annual report for research on geosphere stability for long-term isolation of radioactive waste in fiscal year 2020
Ishimaru, Tsuneari ; Ogata, Nobuhisa ; Kokubu, Yoko ; Shimada, Koji ; Niwa, Masakazu ; Shimada, Akiomi; Watanabe, Takahiro ; Sueoka, Shigeru ; Yokoyama, Tatsunori ; Fujita, Natsuko ; Ogita, Yasuhiro ; Fukuda, Shoma ; Tsukahara, Yuzuko ; Kagami, Saya ; Nagata, Mitsuhiro ; Ogawa, Hiroki; Goto, Akira
This annual report documents the progress of research and development (R&D) in the 6th fiscal year during the JAEA 3rd Mid- and Long-term Plan (fiscal years 2015-2021) to provide the scientific base for assessing geosphere stability for long-term isolation of the high-level radioactive waste. The planned framework is structured into the following categories: (1) Development and systematization of investigation techniques, (2) Development of models for long-term estimation and effective assessment, (3) Development of dating techniques. The current status of R&D activities with previous scientific and technological progress is summarized.