Researches on the characteristics of personal doses after the accident of TEPCO Fukushima Daiichi Nuclear Power Station

Japan Atomic Energy Agency; National Institute of Radiological Sciences*

The review of the evacuation area due to the accident of TEPCO Fukushima Daiichi Nuclear Power Station has completed and the deregulation has begun in some regions. The authors started this research in order to contribute to the understanding of individual dose that is assumed after the return of the residents. Measurements and evaluation using personal dosemeters were conducted at the typical living locations in the area where the evacuation orders are ready to be lifted and the residence restriction area. So the relationship between air dose and personal dose equivalent there was demonstrated observationally and experimentally. In addition, the estimation of the residents' individual doses in the pattern of their social lives expected after returning home.