Development of instrumentation for international standard

計測機器の国際標準化

谷本 政隆 ; 青山 征司; 北岸 茂  ; 柴田 晃 ; 斎藤 隆; 中村 仁一 ; 土谷 邦彦 

Tanimoto, Masataka; Aoyama, Masashi; Kitagishi, Shigeru; Shibata, Akira; Saito, Takashi; Nakamura, Jinichi; Tsuchiya, Kunihiko

再稼働後のJMTRは産業利用(LWRの長期化対応,次世代炉の開発等)の拡大が期待されている。広範囲に渡る利用者の需要への対応、高度な技術や新しい照射技術を開発している。本論文では、JMTRでの照射試験に用いられる計測機器である多対式熱電対,ガス圧計,SPND及びSPGDの開発の現状について述べるとともに、これら計測機器の国際標準化への働きかけについて論じている。

The new JMTR is expected to contribute to many fields: the lifetime extension of LWRs (aging management of LWRs, development of next generation LWRs, etc.), the expansion of industry use (production of the medical radioisotope Tc, etc.) and the progress of science and technology (namely, basic research on nuclear energy). To meet a wide range of users needs, new irradiation technologies with advanced techniques have been developed. In this paper, status of the development of new measuring instruments are introduced which for neutron and irradiation tests in JMTR such as multi-paired thermocouple, rod inner pressure gauge, Self-Powered Neutron Detector (SPND) and Self-Powered Gamma Detector (SPGD).