Institute of Nuclear TechnologyWorking to further enhance the safety
and reliability of nuclear power

Working to further enhance the safety and reliability of nuclear power
Director, Institute of Nuclear TechnologyKaichiro Mishima
Director, Institute of Nuclear TechnologyKaichiro Mishima

The Institute of Nuclear Technology is promoting the following research and investigations, wishing to contribute to further improvement of safety and reliability of nuclear power plants, in a scientific approach on the basis of on-site experiences, learning lessons from the accident at the Fukushima-Daiichi and operational experiences in domestic and overseas nuclear power plants.

1 Aging management research
In Japan, the maximum allowable service life of nuclear power plant is limited by law. Nevertheless, positive measures are still necessary against plant aging so that any nuclear power plants may be operated safely and stably. Aiming at proactive maintenance of nuclear power plants, we have been performing research into the mechanism of aging degradation, such as corrosion, fatigue and radiation damage in structural materials. We are also developing evaluation methods of the integrity of structures and components as well as techniques for monitoring and non-destructive testing.

2 Information analysis and feedback of nuclear power plant
To help assist safe and stable operation of nuclear power plants, we are performing overseas trouble information analysis and regulatory compliance updates in countries of Europe and the US. The resultant findings are then reported to electric power companies in Japan, and recommendations are made as necessary on the improvement of the safety of nuclear power plants.

3 Technical support for operation and maintenance of nuclear power plant
Taking the lessons learned from the accident at the Fukushima-Daiichi nuclear power plant, we are ramping up efforts to promote research into nuclear disaster prevention and mitigation, such as on predictive methods of event progression and mitigation measures during a severe accident. In addition, we are performing researches on plant safety assessment to help improve safety in the operation and maintenance of nuclear power plants.

Research Objectives

To further improve the safety and reliability of nuclear power plants, research activities are being conducted on technology related to the operation and maintenance, from the objective standpoint and in collaboration with external experts.

Research Center and Project

  • Nuclear Power Plant Aging Research Center

    Comprehensive research on aging problems of equipment and structures accompanying long-term operation of nuclear power plants, aged deterioration problem of quality assurance and maintenance supervision
  • Nuclear Power Information Research Project

    Research to improve safety and reliability using the latest information on nuclear power technology
  • Technical Support Research Project

    Research on plant safety assessment and support for nuclear disaster prevention response to improve safety of operation and maintenance of nuclear power plants