Annual report for research on geosphere stability for long-term isolation of radioactive waste in fiscal year 2022
Niwa, Masakazu ; Shimada, Koji ; Sueoka, Shigeru ; Ishihara, Takanori; Ogawa, Hiroki; Hakoiwa, Hiroaki; Watanabe, Tsuyoshi ; Nishiyama, Nariaki ; Yokoyama, Tatsunori ; Ogata, Manabu ; Fukuda, Shoma ; Fujita, Natsuko ; Ogita, Yasuhiro ; Nakajima, Toru ; Kagami, Saya ; Watanabe, Takahiro ; Tsukahara, Yuzuko ; Kawamura, Makoto; Nagata, Mitsuhiro
This annual report documents the progress of research and development (R&D) in the 1st fiscal year of the Japan Atomic Energy Agency 4th Medium- and Long-term Plan (fiscal years 2022-2028) to provide the scientific base for assessing geosphere stability for long-term isolation of high-level radioactive waste. The plan 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.