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論文
FBG センサによる高温環境下原子炉配管変形計測用 歪み・温度モニタリング技術の開発
著者:
小林 喬郎,Takao KOBAYASHI,猿田 晃一,Koichi SARUTA,福元 謙一,Ken-ichi FUKUMOTO
発刊日:
公開日:
キーワードタグ:
Abstract : A new technique of temperature and strain measurement using fiber Bragg grating (FBG) optical fiber sensor at high temperature in irradiation environment was proposed, in which interrogation of FBGs is carried out based on optical time-domain reflectometry (OTDR). Heating test results showed that stable temperature measurement can be done at 600°C and the reflectance of FBG can be kept constant up to 1000°C. From the strain measurement test on a cantilever, multi-point strain measurement c...
英字タイトル:
Development of the FBG sensor for strain and temperature monitoring of high-temperature pipelines of nuclear power reactors
論文
核燃料物質使用施設の高経年化に係る安全性評価手法の開発
著者:
藤島 雅継,Tadatsune FUJISHIMA,水越 保貴 ,Yasutaka MIZUKOSHI,坂本 直樹,Naoki SAKAMOTO,大森 雄,Tsuyoshi OHMORI
発刊日:
公開日:
キーワードタグ:
In order to develop fuels and materials for fast reactors, five hot laboratories as a facility using nuclear materials for post irradiation examination (PIE) are now in operation at the Oarai Research and Development Centre of Japan Atomic Energy Agency. More than 30 years have passed since the first hot run of these facilities was started, and it has been indispensable to maintain the principal equipment for continuous safe operation. For application to preventive maintenance and the safe operation,...
英字タイトル:
Development of safety review method to cope with an aging degradation for the facilities using nuclear material