Optimization of Beamlet Steering for Flat Beam Intensity at a Target Surface

Abstract

Flat beam intensity at a target surface is required to study high heat flux materials. An optimum beam steering for this purpose is formulated and then numerically solved for the case that a multi-aperture ion source is used. It is found that the optimum distribution of the beam axes at the target surface is discrete when the beam divergence is comparable with the required flat width. The distribution gradually becomes continuous as the required width is enlarged.