Ministry of Health, Labour and Welfare


Good Practices in Radiation Exposure Control at the Fukushima Daiichi NPP

14 November 2016

This page introduces good practices implemented by TEPCO and primary contractors related to radiation exposure dose management, exposure reduction and health management at TEPCO’s Fukushima Daiichi NPP.

To collect and facilitate the sharing of information about good practices, the Workshop on Radiation Exposure Control at the Fukushima Daiichi NPP was held in cooperation with TEPCO and primary contractors at Iwaki Business Innovation Center in Iwaki City, Fukushima Prefecture on 14 November 2016.

The workshop consisted of three sessions: (i) Current situation of the Fukushima Daiichi Nuclear Power Plant and the improvement in working environment, (ii) Radiation exposure reduction by improvement of work efficiency and mechanized measures, and (iii) Radiation exposure reduction by the management and improvement of working environment. Presentations were given by TEPCO and primary contractors, followed by an exchange of opinions between participants and experts.

The details of the presentations are compiled and introduced below.

Session1: Current situation of the Fukushima Daiichi Nuclear Power Plant and the improvement in working environment

Efforts to Improve Working Environment and Reduce Radiation Exposure at Fukushima Daiichi Nuclear Power Station

Tokyo Electric Power Company Holdings, Inc.

Abstract PDF 81KB
Presentation material PDF 1189KB

Session2: Radiation exposure reduction by improvement of work efficiency and mechanized measures

About Reducing Radiation Exposure Dose Rates on the Refueling Floor of the Reactor Building for Unit 3

Kajima Corporation

Abstract PDF 17KB
Presentation material PDF 15513KB


Report on improvement of work efficiency and reduction of exposure dose by improving the working environment and using mechanization

Taisei Corporation

Abstract PDF 105KB
Presentation material PDF 6214KB


Unit 1 reactor building cover — Efforts regarding measures to reduce exposure in work to demolish wall panels

Shimizu Corporation

Abstract PDF 105KB
Presentation material PDF 3303KB

Session3: Radiation exposure reduction by the management and improvement of working environment

Measures to prevent the spread of contamination in hot laboratory expansion and removal work at 1F Units 5 and 6

Toshiba Corporation

Abstract PDF 44KB
Presentation material PDF 1110KB


Radiation Protection Initiatives for D-Pit Waste Sludge Desalination Facility

Mitsubishi Heavy Industries Ltd.

Abstract PDF 63KB
Presentation material PDF 1677KB


Radiation Exposure Dose Survey of the Small Rooms on the First Floor of the Reactor Building for Unit 1 of the Fukushima Daiichi Nuclear Power Plant

Hitachi-GE Nuclear Energy, Ltd.

Abstract PDF 17KB
Presentation material PDF 2294KB


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