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Kokubun, Yuji; Hosomi, Kenji; Nagaoka, Mika; Seya, Natsumi; Inoue, Kazumi; Koike, Yuko; Uchiyama, Rei; Sasaki, Kazuki; Maehara, Yushi; Matsuo, Kazuki; et al.
JAEA-Review 2024-054, 168 Pages, 2025/03
JAEA-Review-2024-054.pdf:2.73MB
The Nuclear Fuel Cycle Engineering Laboratories conducts environmental radiation monitoring around the reprocessing plant in accordance with the "Safety Regulations for Reprocessing Plant of JAEA, Part IV: Environmental Monitoring". This report summarizes the results of environmental radiation monitoring conducted during the period from April 2023 to March 2024 and the results of dose calculations for the surrounding public due to the release of radioactive materials from the plant into the atmosphere and ocean. In the results of the above environmental radiation monitoring, several items were affected by radioactive materials emitted from the accident at the Fukushima Daiichi Nuclear Power Station of Tokyo Electric Power Company, Incorporated (changed to Tokyo Electric Power Holdings, Inc. on April 1, 2016), which occurred in March 2011. In addition, environmental monitoring plan, analysis and measurement methods, monitoring data and their chronological change, meteorological data after statistical processing, status of radioactive waste release and evaluation results of the data over the normal range are included as appendices.
Shinto, Katsuhiro; Wada, Motoi*; Nishida, Tomoaki*; Demura, Yasuhiro*; Sasaki, Daichi*; Tsumori, Katsuyoshi*; Nishiura, Masaki*; Kaneko, Osamu*; Kisaki, Masashi*; Sasao, Mamiko*
AIP Conference Proceedings 1390, p.675 - 683, 2011/09
Times Cited Count：0 Percentile：0.00(Physics, Atomic, Molecular & Chemical)Shinto, Katsuhiro; Wada, Motoi*; Nishida, Tomoaki*; Demura, Yasuhiro*; Sasaki, Daichi*; Tsumori, Katsuyoshi*; Kisaki, Masashi*; Nishiura, Masaki*; Kaneko, Osamu*; Sasao, Mamiko*
no journal, ,
no abstracts in English
Sasaki, Kazuki; Sato, Yoshiyuki; Aoyama, Airi; Ishimori, Kenichiro; Abe, Daichi*; Sugaya, Toshikatsu; Amazawa, Hiroya; Sakai, Akihiro; Iseda, Hirokatsu
no journal, ,
Japan Atomic Energy Agency is carrying out a field test for trench disposal of very low-level radioactive waste generated from dismantling first Japanese demonstration reactor named Japan Power Demonstration Reactor. This disposal facility is scheduled to become the first near-surface one in Japan to start decommissioning in 2025. This presentation represents results of periodic review before decommissioning. Based on the setting of the condition of the disposal site and surroundings in (1), assessments in this presentation (2) were conducted in two ways: technical standards when obtaining the business licenses and new regulatory standards enforced in 2013. These resulted in below standard values. This means the disposal facility needs no additional exposure protection and is possible to move to decommissioning.
