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JAEA Reports

Environmental radiation monitoring data from 10 years after the accident at the Fukushima Daiichi Nuclear Power Station, conducted by Oarai Nuclear Engineering Institute, JAEA

Inoue, Yuki; Yamada, Junya; Hamaguchi, Takumi; Seya, Natsumi; Muto, Yasunobu; Nohara, Naofumi; Oishi, Tetsuya; Hashimoto, Makoto

JAEA-Data/Code 2024-017, 109 Pages, 2025/03

JAEA-Data-Code-2024-017.pdf:4.54MB

This report presents the results of environmental radiation monitoring at Oarai Nuclear Engineering Institute, JAEA for 10 years from 2011 to 2021 after the accident at the Fukushima Daiichi Nuclear Power Station. Database of monitoring results are included as an appendix. Environmental transfer parameters, deposition velocity, resuspension factor, concentration factor and distribution coefficient, are calculated as an Appendix.

Oral presentation

Study of spontaneously excited waves on plasmas with anisotropic velocity distribution

Katano, Makoto*; Ichimura, Makoto*; Yamaguchi, Yusuke*; Motegi, Yukimi*; Muro, Taishi*; Ouchi, Toshiaki*; Oishi, Junya*; Sato, Shoichi*; Ishikawa, Masao; Moriyama, Shinichi; et al.

no journal, ,

The understanding of spontaneously excited waves in plasmas with anisotropic velocity distributions is the main purpose of this presentation. In JT-60U, the ion cyclotron emissions (ICEs) due to fusion product ions have been experimentally observed. By using the local dispersion relation in hot plasmas, the excitation of slow and fast Alfvn waves are evaluated. The excitation mechanism for ICEs due to fusion product ions are discussed.