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Report No.

Generation of laser Compton scattered $$gamma$$-rays from a 150-MeV microtron

Hajima, Ryoichi; Hayakawa, Takehito; Shizuma, Toshiyuki; Angell, C.; Daito, Izuru; Kando, Masaki; Ogaki, Hideaki*

We have developed a laser Compton scattered $$gamma$$-ray source based on a 150-MeV racetrack microtron at Japan Atomic Energy Agency. The microtron equipped with a photocathode RF gun accelerates a single bunch of electrons to collide with a laser pulse from a Nd:YAG laser. We have employed laser pulse compression by stimulated Brillouin scattering to obtain high-flux $$gamma$$-rays, $$>$$ 10$$^{5}$$ ph/s. The $$gamma$$-ray source is a prototype of commercial machine for nuclear security applications, non-destructive detection of nuclear material hidden in a ship cargo. Design and performance of the $$gamma$$-ray source are presented.



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