[3C01-09] Environmental Radiation Monitoring

9:30 AM - 9:45 AM JST(12:30 AM - 12:45 AM UTC)

[3C01] The Progress and Future Prospects of Environmental Radiological Monitoring by Japan Atomic Energy Agency(1) Large-Scale Environmental Monitoring Experience and Remaining Challenges

*Yukihisa Sanada¹, Kazuya Yoshimura¹, Hironori Funaki¹ (1. Japan Atomic Energy Agency)

Keywords:

Fukushima Daiichi Nuclear Power Station Accident,Ambient dose rate distribution,Large-scale monitoring,Radiocesium distribution,Unmanned vehicle

The accident at TEPCO's Fukushima Daiichi Nuclear Power Station necessitated large-scale radiation monitoring of the surrounding environment. Immediately after the accident, JAEA has been conducting various environmental radiation monitoring activities, including wide-area monitoring using helicopters, unmanned aerial vehicles, and vehicles, as a project commissioned by the Nuclear Regulation Authority. We have also developed new radiation measurement methods that can efficiently measure not only the distribution of air dose rates over a wide area but also the deposited amounts of radioactive cesium on the bottom of water and soil surfaces. Efforts are underway to make these wide-area monitoring experiences into a legacy of nuclear disaster prevention tools. In this series of presentations, we will introduce our experiences in environmental monitoring and instrument development, as well as their application as a nuclear sand prevention tool.