The Data-base of the radiation monitoring in Fukushima based on the comprehensive radiation monitoring plan

Abe, Tomohisa; Ogiya, Takashi*; Shibata, Katsuya*; Hanawa, Tatsuaki*; Sanada, Yukihisa

JAEA-Data/Code 2020-004, 280 Pages, 2020/08

JAEA-Data-Code-2020-004.pdf:3.91MB

After the accidents at Fukushima Daiichi Nuclear Power Station (FDNPS), Japan Atomic Energy Agency has carried on survey for distribution situation of radiation materials under the direction of the Ministry of Education, Culture, Sports, Science and Technology (later the Nuclear Regulatory Agency) from June 2011 to FY2019. This report is mainly summarized as data-base of air dose rate, integrated dose and radionuclide concentration of some types of environmental sample (airborne dust, soil, pine needles) in the radiation monitoring in Fukushima Prefecture (20 km far from FDNPS). The results of radiation monitoring were analyzed for temporal change at each measurement site under the unification format. Furthermore, the effective half-life and the dispersion at each location and sample were evaluated based on these big data.

Electrochemical measurements in various environments; Corrosion monitoring of carbon steel in deep underground environment

Taniguchi, Naoki; Nakayama, Masashi

Zairyo To Kankyo, 67(12), p.487 - 494, 2018/12

https://doi.org/10.3323/jcorr.67.487

This article describes the current status of corrosion monitoring methods and examples of the measurement under deep underground environments for carbon steel overpacks for high-level radioactive waste disposal. Based on the studies on corrosion monitoring using AC Impedance technique, some of the typical measurement systems such as the electrodes arrangement are introduced. In-situ corrosion monitoring in engineering scale test is also being attempted using a deep underground research facility, and the measurement method and results are presented in this article.

Proceedings of the Final ISTC/STCU Technical Review Committee Meeting of Fukushima Initiative "On the environmental assessment for long term monitoring and remediation in and around Fukushima" November 5-6, 2015, Tokyo, Japan

ISTC/STCU Fukushima Initiative Technical Review Committee; Fukushima Initiative Technical Review Committee

JAEA-Conf 2016-003, 107 Pages, 2016/07

JAEA-Conf-2016-003.pdf:5.87MB

The final ISTC/STCU Technical Review Committee Meeting "On the environmental assessment for long term monitoring and remediation in and around Fukushima" was held in Hitotsubashi University Hall, Tokyo, on November 5-6, 2015. This report consists of summary reports of Fukushima Initiative projects, which were presented at the meeting. As regarding to the sections those which will be published elsewhere, only their executive summaries are included.

Radiation monitoring data of the HTTR rise-to-power test; Results up to 30MW operation on the high-temperature test operation mode

Ashikagaya, Yoshinobu; Kawasaki, Tomokatsu; Yoshino, Toshiaki; Ishida, Keiichi

JAERI-Tech 2005-010, 81 Pages, 2005/03

JAERI-Tech-2005-010.pdf:16.65MB

no abstracts in English

Natural background Gamma-ray spectrum; List of Gamma-rays ordered in energy from natural radionuclides

; ; Kitao, Kensuke*

JAERI-Data/Code 98-008, 73 Pages, 1998/03

JAERI-Data-Code-98-008.pdf:26.34MB

no abstracts in English

Isopleths of Surface Concentration and Surface Exposure Rate Due to a Radioactive Cloud Released From a Stack

; ; ; ;

JAERI-M 82-021, 292 Pages, 1982/03

JAERI-M-82-021.pdf:8.23MB

no abstracts in English

Radiation monitoring for induced radioactivities at JAERI-Linac

Kyoto Daigaku Genshiro Jikkenjo, Koenerugi Hoshasen No Hoken Butsuri (Koenerugi Hoshasenjo De Seisei Suru Yudo Hoshano Ni Tsuite) Kenkyukai Hokokusho, p.44 - 48, 1976/00

no abstracts in English