Ministry of Health, Labour and Welfare

Ministry of Health, Labour and Welfare

In Focus: Radiation Protection at Works Relating to TEPCO's Fukushima Daiichi Nuclear Power Plant Accident

Good Practices in Radiation Exposure Control at the Fukushima Daiichi NPP

10 November 2015

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 J-Village in Futaba County, Fukushima Prefecture on 10 November 2015.

The workshop consisted of three sessions: (i) improving working environment activities, (ii) radiation exposure reduction, and (iii) technological research and development. 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: Improving working environment activities at the Fukushima Daiichi NPP

Initiatives for improving the working environment in the Fukushima Daiichi NPP

Tokyo Electric Power Company, Incorporated.

  1. Abstract PDF 18KB
  2. Presentation material 1 PDF 1537KB
  3. Presentation material 2 PDF 5017KB

Session2: Good practices in radiation exposure reduction.

Activities concerning radiation control for the treatment of accumulated water at the Fukushima Daiichi NPP

Hitachi-GE Nuclear Energy, Ltd.

  1. Abstract PDF 60KB
  2. Presentation material PDF 2111KB

Evaluation of the total exposure reduction measures during construction of the land-side impermeable walls using the frozen soil method

Kajima Corporation

  1. Abstract PDF 58KB
  2. Presentation material PDF 2669KB

Introduction of examples for reducing exposure dose during the decontamination at the reactor building in the Fukushima Daiichi NPP Unit 3

Mitsubishi Heavy Industries Ltd.

  1. Abstract PDF 14KB
  2. Presentation material PDF 1244KB

Session3: Technological research and development.

Dose rate reduction by decontamination of the reactor building at the Fukushima Daiichi NPP Unit 2

Toshiba Corporation

  1. Abstract PDF 35KB
  2. Presentation material PDF 1044KB

Activities to reduce exposure doses during disassembly of bolted type tanks

Taisei Corporation

  1. Abstract PDF 46KB
  2. Presentation material PDF 2825KB

Efforts for reducing radiation exposure during facing construction of slope areas

Shimizu Corporation

  1. Abstract PDF 57KB
  2. Presentation material PDF 3083KB