Measuring and assessing individual external doses during the rehabilitation phase in Iitate village after the Fukushima Daiichi nuclear power plant accident

Journal of Radiological Protection : Official Journal of the Society for Radiological Protection
Wataru NaitoYujiro Kuroda

Abstract

After the Fukushima Daiichi nuclear power plant accident in 2011, Iitate village was placed under an evacuation order because the level of radioactive materials drifting from the nuclear plant to the village was above a government-set level for allowing residents to live in the area. The evacuation advisory for most of the village was lifted on 31 March 2017. For displaced residents deciding whether or not to return to their homes, it is important to correctly understand and estimate the realistic individual external doses they will receive after returning to the village. In this study, with the support of residents of the village, we used a personal dosimeter (D-Shuttle) coupled with a global positioning system device to measure and thus understand realistic individual external doses while the residents were in Iitate village and to project the individual external doses for different administrative districts as of 1 April 2017. The measured individual external doses measured by D-Shuttle for 38 study participants showed that the doses measured during time spent inside the village were higher and more widely distributed than the doses measured during time spent outside the village. The exposure ratio (ER) was defined as the rat...Continue Reading

References

Nov 28, 2015·Journal of Radiological Protection : Official Journal of the Society for Radiological Protection·N AdachiE Zuclarelli
Apr 2, 2016·Journal of Radiological Protection : Official Journal of the Society for Radiological Protection·Tetsuo IshikawaMasafumi Abe
Jan 25, 2020·Journal of Radiological Protection : Official Journal of the Society for Radiological Protection

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Citations

Oct 17, 2019·Journal of Radiological Protection : Official Journal of the Society for Radiological Protection·Michio MurakamiTomoyoshi Oikawa
Dec 7, 2019·Journal of Radiological Protection : Official Journal of the Society for Radiological Protection·Shuhei NomuraMasaharu Tsubokura
May 27, 2020·Journal of Radiological Protection : Official Journal of the Society for Radiological Protection·Keizo UchiyamaShoichi Muto

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