Title :
Development of high current laser ion source for heavy ion fusion
Author :
Hasegawa, J. ; Yoshida, M. ; Fukata, S. ; Oguri, Y. ; Ogawa, M. ; Nakajima, M. ; Horioka, K.
Author_Institution :
Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology, 2-12-1, O-okayama, Meguro-ku, 152-8550, Japan
Abstract :
We examined beam optics and emittance of a KrF laser ion source with a pepper-pot method. From copper plasmas produced by 2–4×10−8-W/cm2 laser irradiation, ion beams of ∼10 mA were extracted over 20 µs. Stability of the beam optics strongly depended on the flux balance(perveance matching) in the extraction gap. We achieved stable extraction by choosing adequate voltage and source plasma flux. A simple charge-state analyzer using a micro-channel plate (MCP) showed that the ion beams contained Cu+ and Cu2+ dominantly.
Conference_Titel :
High-Power Particle Beams, 2000 13th International Conference on
Conference_Location :
Nagaoka, Japan
