Integrated radiation air dose rate maps over the 80 km radius of the Fukushima Daiichi Nuclear Power Plant and the entire Fukushima Prefecture during 2011-2022

Sakuma, Kazuyuki; Kurikami, Hiroshi; Wainwright, Haruko*; Tanimori, Soichiro*; Nagao, Fumiya; Ochi, Kotaro; Sanada, Yukihisa; Saito, Kimiaki

Journal of Environmental Radioactivity, 280, p.107554_1 - 107554_11, 2024/12

https://doi.org/10.1016/j.jenvrad.2024.107554

In this study, we created the integrated radiation air dose rate maps in the Fukushima region during 2011-2022 using multiple types of surveys such as air-borne, car-borne and walk surveys as well as fixed-location measurements. We applied the Bayesian geostatistical method developed by Wainwright et al. (2017, 2019) to the 80 km radius of the Fukushima Dai-ichi Nuclear Power Plant and the whole of Fukushima Prefecture while considering the history of the lifting of the evacuation zone in Fukushima. The integrated maps fixed the bias to underestimate air dose rates in forest areas, and successfully created more reproducible integrated maps with a wider area and time series than the previous studies. It is highly expected that the results of this study will be used to evaluate detailed exposure doses to the general public.

Study on high efficiency high power Klystron

Hirano, Koichiro; Sakuma, Minoru; Yoshikawa, Kiyoshi*; Onishi, Masami*; Yamamoto, Yasushi*; Toku, Hisayuki*

PNC TY1604 95-001, 118 Pages, 1995/03

PNC-TY1604-95-001.pdf:3.25MB

no abstracts in English

None

Shikakura, Sakae*; Kaneda, Kenichiro; ; ; ; Sakuma, Tamio*; ;

PNC TN8410 88-013, 208 Pages, 1988/02

PNC-TN8410-88-013.pdf:4.87MB

None

Investigation on distribution of radioactive substances in Fukushima, 14; Modeling on the integrated radiation air dose rate maps during 2011-2022

Sakuma, Kazuyuki; Kurikami, Hiroshi; Wainwright, Haruko*; Tanimori, Soichiro*; Nagao, Fumiya; Ochi, Kotaro; Sanada, Yukihisa; Saito, Kimiaki

no journal, , 

no abstracts in English