Space-charge effects in liquid metal ion sources of different geometries

The current work considers the effect of geometry, other than the ideal Taylor cone, on space charge and axial fields of liquid metal ion sources. Solutions of the spacecharge equation for the concentric sphere and hyperboloidal-planar models of a liquid emitter demonstrate a rather dramatic dependence of the space charge and axial fields on the geometry of the emitting surface.This research was supported in part by the NATO Research Grants Division, Grant No. 1902, Scientific Affairs Division, Brussels, BelgiumAltoona Campus