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Manabe, Kentaro
Hoken Butsuri, 52(1), p.35 - 38, 2017/03
Health Physics Seminar 2016 was held at the Osaka Science & Technology Center with 150 participants on Nov. 2, 2016. The seminar was consisted of three themes: "current movements of protection and operational quantities", "future risk communications inspired by the Fukushima accident", and "effects of low dose radiation on human". Eminent specialists gave lectures about the news in their particular fields and suggestions to problems. In addition, a special lecture entitled "recent movements of issues about Act on Prevention of Radiation Hazards due to Radioisotopes, etc." was given by a specialist of the Secretariat of Nuclear Regulation Authority. This lecture introduced the examples of trouble incidents, reports on implementation status of inspections, results of Integrated Regulatory Review Service by IAEA, etc. There were vigorous questioning and discussions through the seminar. This document reported the summary of the lectures and discussions, and the author's impressions of the seminar.
Takahashi, Fumiaki; Manabe, Kentaro
no journal, ,
If the 2007 Recommendations of International Commission on Radiological Protection (ICRP) are incorporated to radiation regulations in Japan, the regulatory standard values are also to be revised for exposure dose assessment. Thus, we have proceeded surveys of exposure dose evaluation data based on the 2007 Recommendations. New effective dose conversion coefficients are published by expanding radiation types and energies beyond the current regulations in Japan for external exposure dose assessments. In addition, new effective dose coefficients for internal dosimetry due to occupational exposure have been given with radioisotope types revised by reflecting the latest scientific knowledge. Here, it might be essential to consider whether to adopt these data with consideration of exposure situations at radiation facilities. In addition, we should take care of discussions in ICRP for the general recommendations in future.
