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Comparison of the UNSCEAR isodose maps for annual external exposure in Fukushima with those obtained based on the airborne monitoring surveys
Ryugo Hayano, Makoto Miyazaki
In 2016, UNSCEAR published an attachment to its Fukushima 2015 White Paper, entitled "Development of isodose maps representing annual external exposure in Japan as a function of ti…
Measurement of Individual Dose from External Exposure among All Citizens of Date City 5 to 51 Months after the Fukushima NPP Accident: Prediction of Lifetime Additional Dose and Evaluating the Effect of Decontamination on Individual Dose
Makoto Miyazaki, Ryugo Hayano
In the first paper of this series, we showed that the ratio c of individual dose to ambient dose did not change with time in Date City, Fukushima Prefecture, after the Fukushima Da…
Individual External Dose Monitoring of All Citizens of Date City by Passive Dosimeter 5 to 51 Months After the Fukushima NPP Accident (series): 1. Comparison of Individual Dose with Ambient Dose Rate Monitored by Aircraft Surveys
Ryugo Hayano, Makoto Miyazaki
Date City in Fukushima Prefecture has conducted a population-wide individual dose monitoring program after the Fukushima Daiichi Nuclear Power Plant Accident, which provides a uniq…
Whole-body counter surveys of over 2700 babies and small children in and around Fukushima Prefecture 33 to 49 months after the Fukushima Daiichi NPP accident
Ryugo S. Hayano, Masaharu Tsubokura, Makoto Miyazaki +11
BABYSCAN, a whole body counter (WBC) for small children was developed in 2013, and units have been installed at three hospitals in Fukushima Prefecture. Between December, 2013 and…
Whole body counter surveys of Miharu-town school children for four consecutive years after the Fukushima NPP accident
Ryugo S. Hayano, Masaharu Tsubokura, Makoto Miyazaki +4
Comprehensive whole-body counter surveys of Miharu town school children have been conducted for four consecutive years, in 2011-2014. This represents the only long-term sampling-bi…
Whole-body counter survey results 4 months after the Fukushima Daiichi NPP accident in Minamisoma City, Fukushima
Ryugo S. Hayano, Yuni Watanabe, Shuhei Nomura +7
Using the first WBC unit installed in Fukushima Prefecture after the accident, the radiocesium body burdens of 566 high-risk residents of Minamisoma city were measured in July 2011…
BABYSCAN - a whole body counter for small children in Fukushima
Ryugo S. Hayano, Shunji Yamanaka, Frazier L. Bronson +2
BABYSCAN, a whole body counter for small children with a detection limit for Cs of better than 50 Bq/body, was developed, and the first unit has been installed at a hospita…