Development and application of radiation-resistant optical fiber for heavy irradiation environment

To, Kentaro  ; Shikama, Tatsuo*

There are fewer devices which have a long-term stability used in a heavy irradiation environment such as nuclear power plant and accelerator. And, the nuclear accident at Fukushima-1 revealed importance of visualization of core parts of nuclear systems, where heavy radiation field will hider easy access. Fused silica based optical fibers will be one among the strongest candidates for visualization of the fields. The paper will describe the present status of development and its application of radiation resistant optical fibers.