Paper | Title | Page |
---|---|---|
THPWA009 | Generation of Laser Compton Scattered Gamma-rays from a 150-MeV Microtron | 3645 |
|
||
Funding: This work was supported in part by special coordination funds for promoting science and technology in Japan (Grant No. 066). 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, > 105 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. |
||
THPWA011 | Concepts of 220 MeV Racetrack Microtron for Non-destructive Nuclear Material Detection System | 3651 |
|
||
Funding: Japan Science and Technology Agency Special Coordination Funds for Promoting Science and Technology (Grant No. 066) A nuclear material detection system (NMDS) using the quasi-monochromatic gamma-ray beam from a laser Compton scattering (LCS) source is proposed for the container inspection, where nuclear resonance fluorescence method is to be employed for the specific isotope identification such as U-235. In the system an electron beam of good quality at about 220-MeV must be provided for LCS. One of the most promising electron source is a compact electron accelerator named racetrack microtron (RTM). Some concepts of RTM suitable for NMDS and expected beam qualities will be presented. |
||