廃炉ロボットが利用するフォトニクス技術の現状と将来

概要

In the decommissioning work of Fukushima Daiichi Nuclear Power Plant, various work has been done by remote control robots in order to reduce the risk of radiation exposure to human workers. Remote control robots will be utilized also in the future decommissioning processes such as fuel debris retrieval. This paper first outlines the photonics technologies used with robots in the past decommissioning operations. After that, the paper shows photonics technologies expected from four viewpoints, such as teleoperation interface, situation understanding inside primary containment vessels, decontamination, and cutting of fuel debris, considered to be particularly important in future decommissioning work using remote control robots.