Laser-Driven γ -Ray Source for Nondestructive Testing

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  • OISHI Yuji
    Central Research Institute of Electric Power Industry (CRIEPI)

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  • 非破壊検査用レーザー駆動γ線源
  • ヒハカイ ケンサヨウ レーザー クドウ γセン ゲン

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Abstract

Laser-driven γ -ray is expected to be a very useful nondestructive diagnostic tool for large-scale structures because of its potential for high energy, short pulse, high spatial resolution, compactness, and easy control. CRIEPI has proposed a radiographic testing system that consists of a compact laser-driven γ -ray generator and a compact radiographic imaging system. It can be applied to a very narrow space (10 cm) in plant facilities, which are often crowded with pipes and other components. Here we review the recent progress of our research on a laser-driven γ -ray source for nondestructive testing.

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