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論文
ITERにおける核融合装置規格開発の考え方
著者:
中平 昌隆,Masataka NAKAHIRA,武田 信和,Nobukazu TAKEDA
発刊日:
公開日:
キーワードタグ:
The technical structural standard for ITER （International Thermonuclear Ex- perimental Fusion Reactor）should be innovative because of their quite different features of safety and mechanical components from nuclear fission reactors, and the necessity of introducing several new fabrication and examination tech- nologies. Recognizing the international importance of Fusion Standard, Japan and ASME has started the cooperation development of the Fusion Standard. This paper shows the special features of ITE...
英字タイトル:
An Approach for Development of Technical Structural Standard in ITER
論文
Laser-ultrasonic study of micro crack sizing and its application to nuclear reactor internals
著者:
Makoto OCHIAI, Takahiro MIURA, Satoshi YAMAMOTO, Toru ONODERA,
発刊日:
公開日:
キーワードタグ:
A new method for non-destructive testing（NDT）of surface-breaking tight cracks based on laser-induced surface acoustic waves（SAW）is proposed. A Q-switched Nd:YAG laser is used to generate SAW through ablative interaction between material and laser pulse. The SAW is probed by an optical interferometer as a micro displacement of the surface. A state-of-the-art technique in laser- ultrasonic NDT is developed: that is the crack depth measurement by using frequency analysis of laser-induced SAW transmitted throug...
英字タイトル:
Laser-ultrasonic study of micro crack sizing and its application to nuclear reactor internals
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