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Report No.
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"TILA" application in severe environments as a powerful tool for in-situ remote analysis of fuel debris in decommissioning of Fukushima Daiichi Nuclear Power Station

Wakaida, Ikuo  ; Oba, Hironori  ; Akaoka, Katsuaki ; Karino, Takahiro ; Nakanishi, Ryuzo*; Sakamoto, Kan*; Ikeda, Yuji*; Taira, Takunori*

For the safe and efficient decommissioning of Fukushima Daiichi Nuclear Power Station, development of in-situ remote analysis of nuclear fuel debris under extreme high radiation environment has been indispensable. Optical Fiber Coupled Laser Induced Breakdown Spectroscopy (OFC-LIBS) has been developed and performed up to delivery length about 50m. For more longer delivery length, "TILA" has been developed as a laser built-in remote LIBS probe and enable radiation hardened ultra-long remote analysis of 100m. In the presentation, performance of analysis and radiation hardness will be discussed.

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