Abstract

We studied the inner structure of the nuclear reactor of the Japan Atomic Power Company (JAPC) at Tokai, Japan, by muon radiography. Muon detectors were placed outside the reactor building. By detecting cosmic muons penetrating the wall of the reactor building, we could successfully identify objects such as the containment vessel, pressure vessel, and other structures of the reactor. We also observed a concentration of heavy material which can be attributed to the nuclear fuel assemblies stored in the nuclear fuel storage pool.

Details

Title
Imaging the inner structure of a nuclear reactor by cosmic muon radiography
Author
Fujii, Hirofumi 1 ; Hara, Kazuhiko 2 ; Hashimoto, Shogo 3 ; Hayashi, Kohei 1 ; Ito, Fumiaki 2 ; Kakuno, Hidekazu 4 ; Kodama, Hideyo 1 ; Nagamine, Kanetada 1 ; Sato, Kazuyuki 5 ; Satoh, Kotaro 1 ; Shin-Hong, Kim 2 ; Suzuki, Atsuto 6 ; Sumiyoshi, Takayuki 4 ; Takahashi, Kazuki 3 ; Takahashi, Yu 7 ; Takasaki, Fumihiko 1 ; Tanaka, Shuji 1 ; Yamashita, Satoru 8 

 High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan 
 University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan 
 University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan; NEDO 
 Tokyo Metropolitan University, Japan 
 University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan; Iwate Prefectural University 
 High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan; JAEA 
 University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan; JAXA 
 University of Tokyo, Japan 
Publication year
2019
Publication date
May 2019
Publisher
Oxford University Press
e-ISSN
20503911
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
3171483009
Copyright
© The Author(s) 2019. Published by Oxford University Press. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.