Laser-Based Heavy Ion Production

Laser ion source (LIS) already has about thirty years history, and has many variety of usages. Since 2000 we have focused on high brightness of induced laser plasma to provide intense highly charged ions efficiently. To take an advantage of the intrinsic density of the plasma, Direct Plasma Injection Scheme (DPIS) has been developed. The induced laser plasma has initial expanding velocity and can be delivered directly to the RFQ. Using this technique, we can provide pulsed very high intensity heavy ion beam with good stability. We achieved 70 mA of Aluminum beam after the RFQ. Also, feasibility of frozen gas target scheme was verified. A design strategy for LIS has been established and the DPIS is ready for use in real operating facilities.