Development of high-average-power short-pulse laser system for the isotope-specific nondestructive assay using laser-Compton -rays

Mori, Michiaki; Kosuge, Atsushi; Okada, Hajime; Kiriyama, Hiromitsu; Ochi, Yoshihiro; Tanaka, Momoko; Nagashima, Keisuke; Kondo, Kiminori

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A high-average-power (100 W class) high-repetition-rate (80 MHz) laser system for laser-Compton -ray source has been developed. 80 MHz repetition rate is synchronized to repetition rate of electron bunch from compact electron recovery linac (cERL). In addition, a photon storage cavity (i.e. enhancement cavity) which provides boosted photons at the interaction point has also been developed. These equipments are necessary to generate ultra-high brilliance -ray photons.