ICRP2007年勧告策定前後を振り返って

抄録

The International Commission on Radiological Protection (ICRP) started to prepare the new general recommendations. The Fukushima Daiichi Nuclear Power Plant accident in March 2011 which followed the Great East Japan Earthquake and a gigantic Tsunami was the first large nuclear accident since ICRP 2007 Recommendations became effective. The experiences and notions of the accidents, countermeasures, and restorations are expected to contribute to the production of the new general recommendations. The author served as a member of the main commission (MC) of ICRP from July 2001 to June 2009 and participated in nearly the whole process of producing ICRP 2007 Recommendations. This article reminisces about the works in which the MC had engaged during that period. The author expects the story which includes personal impressions may serve as useful information for those who are involved in preparation of the new recommendations, from Japan in particular. This article is based on an invited lecture which was presented at the 56th Congress of the Japan Health Physics Society held jointly with the 7th International Symposium on the System of Radiological Protection (ICRP 2023) in Tokyo.