JDR Vol.12 No.3 pp. 585-592
doi: 10.20965/jdr.2017.p0585


Research and Development of a Non-Destructive Inspection Technique with a Compact Neutron Source

Yoshie Otake*,†, Yoshichika Seki**, Yasuo Wakabayashi*, Yoshimasa Ikeda*, Takao Hashiguchi*, Yuichi Yoshimura*, Hideyuki Sunaga*, Atsushi Taketani*, Maki Mizuta*, Yoshinobu Oshima***, and Masahiro Ishida***

*RIKEN Center for Advanced Photonics, RIKEN
2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan

Corresponding author

**J-PARC Center, Japan Atomic Energy Agency, Ibaraki, Japan

***Center for Advanced Engineering Structural Assessment and Research, Public Works Research Institute, Ibaraki, Japan

September 29, 2016
May 17, 2017
Online released:
May 29, 2017
June 1, 2017
compact neutron source, fast neutron, non-destructive inspection method development, prompt-gamma neutron activation analysis, salt concentration estimation
Neutrons have the power to penetrate metals or heavy elements such as calcium, silicon, and iron. Neutrons also have high sensitivity, so they can be used to detect elements such as boron and chlorine. An accelerator-driven, compact neutron system has been developed in RIKEN for practical use on job sites.
In this paper, a pixel imaging detector for fast neutrons with energy levels above 1 MeV is developed and used to produce images of an iron rod and air pockets through 30 cm of concrete. Also, the salt concentrations of 4 cm- and 5 cm-thick mortar blocks are measured, and a correlation diagram is obtained for up to 1 kg/m3.
Cite this article as:
Y. Otake, Y. Seki, Y. Wakabayashi, Y. Ikeda, T. Hashiguchi, Y. Yoshimura, H. Sunaga, A. Taketani, M. Mizuta, Y. Oshima, and M. Ishida, “Research and Development of a Non-Destructive Inspection Technique with a Compact Neutron Source,” J. Disaster Res., Vol.12 No.3, pp. 585-592, 2017.
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Last updated on Jul. 23, 2024