Presentation Information

[3M04]Exposure dose assessment associated with decommissioning of the trench disposal facility in Nuclear Science Research Institute(1)Condition and parameter setting for periodic assessments based on the latest technical knowledge

*Kenji Ozone1, Rina Ogawa1, Hiroya Amazawa1, Akihiro Sakai1, Yoshiyuki Sato1, Tomoko Haraga1, Yutaka Kameo1, Hisakazu Nakata1 (1. JAEA)

Keywords:

Radioactive Waste Disposal,Trench Disposal Facility,Decommissioning,Periodic Safety Review,Exposure Dose Assessment

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.
In this presentation (1), we report on the results of the survey, monitoring, and measurement of the environment in the vicinity of the disposal site, and then the condition setting of the public living environment around the site to conduct exposure dose assessment based on the latest technical knowledge and the new regulatory standards enforced in 2013. The results of the dose assessment are reported in (2).

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