Compact multibeamlet high-current injector for heavy-ion fusion drivers

Using curved electrodes in the injector, an array of converging beamlets can produce a beam with the envelope radius, convergence, and ellipticity matched to an electrostatic quadrupole channel. Experimental results were in good quantitative agreement with the simulation and have demonstrated the feasibility of this concept. Based on this approach, the size of a driver-scale injector system will be reduced, so the success of this experiment has significant economical and technical impacts on the architecture of heavy-ion fusion drivers. (c) 2006 American Institute of Physics.