Radiation imaging system using a compact -ray imager mounted on a remotely operated machine

Sato, Yuki  ; Kawabata, Kuniaki   ; Ozawa, Shingo*; Izumi, Ryo*; Kaburagi, Masaaki   ; Tanifuji, Yuta ; Terasaka, Yuta   ; Miyamura, Hiroko  ; Kawamura, Takuma ; Suzuki, Toshikazu*; Torii, Tatsuo  

The development of remote and quick radiation imaging methods in the high dose-rate environment is requested to accelerate implementation of decommissioning of the Fukushima Dai-ichi Nuclear Power Plant (FDNPP). We developed the remote radiation imaging system consisting of a Compton camera and a multicopter drone to remotely measure the radioactive contamination on the several radioactive fields in the environment and inside the building of nuclear facilities such as the FDNPP. The drone system succeeded in the observation of several hotspots from the sky at the outdoor environments in coastal areas of Fukushima, Japan. In addition, we are now developing the SLAM technology for remotely operated machines such as the drone to complete the remote radiation imaging system, which can autonomous flight.