Cosmic-ray muon scattering method to evaluate nuclear materials in fuel debris
Abstract
Fuel debris was sampled by a trial retrieval method at Unit 2 of Fukushima Daiichi Nuclear Power Plant. To support safe handling and storage, it is important to distinguish fuel debris from other radioactive wastes and to sort it based on its nuclear material content. The muon scattering method is highly sensitive to high-atomic-number materials such as uranium. A prototype muon scanner was developed and tested to assess the uranium-dioxide content in simulated debris. For preliminary analysis, an analytical method that incorporates muon scattering angles, muon stopping rate, and debris weight was developed and applied.
Article Details
Journal Info
Journal of Applied Physics
American Institute of Physics
Authors (11)
Haruo Miyadera
Toshiba Energy Systems & Solutions Corporation 4 , Kawasaki 210-0862,
Naoto Kume
Toshiba Energy Systems & Solutions Corporation 2 , Kanagawa 212-8585,
Takuro Fujimaki
Toshiba Energy Systems & Solutions Corporation 2 , Kanagawa 212-8585,
Yuki Nakai
Toshiba Energy Systems & Solutions Corporation 2 , Kanagawa 212-8585,
Kyohei Noguchi
Toshiba Energy Systems & Solutions Corporation 2 , Kanagawa 212-8585,
Souichi Ueno
Toshiba Energy Systems & Solutions Corporation 2 , Kanagawa 212-8585,
Tsukasa Sugita
Toshiba Energy Systems & Solutions Corporation 2 , Kanagawa 212-8585,
Kenji Kurihara
Toshiba Energy Systems & Solutions Corporation 2 , Kanagawa 212-8585,
Takahiro Tanaka
Ryunosuke Mizuguchi
Tousou Mirai Technology Co. Ltd 3 , Fukushima 979-1301,
Masaki Yoda