title: Mapping of the cumulative β-ray dose on the ground surface surrounding the Fukushima area.
abstract: A large amount of the fission products released by the Fukushima Daiichi Nuclear Power Plant (FDNPP) accident on 11 March 2011 was deposited in a wide area from Tohoku to northern Kanto. A map of the estimated cumulative β-ray dose (70 μm dose equivalent) on the soil surface for one year after the FDNPP accident has been prepared using previously reported calculation methods and the 2-km mesh survey data by MEXT. From this map of estimated dose, areas with a high cumulative β-ray dose on the soil surface for one year after the FDNPP accident were found to be located in the Akogi-Teshichiro to Akogi-Kunugidaira region in Namie Town, and in the southern Futaba Town to the northern Tomioka Town region. The highest estimated cumulative β-ray dose was 710 mSv for one year at Akogi-Teshichiro, Namie Town.
authors.affiliation: Quantum Energy Applications, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan endos@hiroshima-u.ac.jp.
authors.forename: Satoru
authors.initials: S
authors.lastname: Endo
authors.affiliation: Quantum Energy Applications, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan.
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Kajimoto
authors.affiliation: Quantum Energy Applications, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan.
authors.forename: Kenichi
authors.initials: K
authors.lastname: Tanaka
authors.affiliation: Quantum Energy Applications, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan.
authors.forename: Thanh T
authors.initials: TT
authors.lastname: Nguyen
authors.affiliation: Institute of Development, Aging and Cancer, Tohoku University, Seiryo-machi 4-1, Aoba-ku Sendai, 980-8575, Japan.
authors.forename: Gohei
authors.initials: G
authors.lastname: Hayashi
authors.affiliation: Kyoto University Research Reactor Institute 2, Asashiro-Nishi, Kumatori-cho, Sennan-gun, Osaka 590-0494, Japan.
authors.forename: Tetsuji
authors.initials: T
authors.lastname: Imanaka
mesh_terms: D001610:Beta Particles; D002588:Cesium Radioisotopes / Q000032:analysis*; D062406:Fukushima Nuclear Accident; D011829:Radiation Dosage; D011834:Radiation Monitoring; D012990:Soil Pollutants, Radioactive / Q000032:analysis*
chemical_list: D002588:Cesium Radioisotopes; D012990:Soil Pollutants, Radioactive
keywords: Fukushima Daiichi Nuclear Power Plant accident; radiocesium; radioiodine; radiotellurium; β-ray dose