Articles you may be interested inEnhancement of ionization efficiency of surface, electron bombardment and laser ion sources by axial magnetic field application Rev. Sci. Instrum. 75, 1585 (2004); 10.1063/1.1691515 A simple, high efficiency, negative surface ionization source Rev. A high ionization efficiency source for partially ionized beam deposition J. Vac. Sci. Technol. A 6, 9 (1988); 10.1116/1.574977High resolution structuring of emitter tips for the gaseous field ionization source A high efficiency ionizer for the ETH polarized ion source AIP Conf.
A technique is presented for measuring the natural angular divergence of ions exiting an ionization source by using a microchannel plate-image intensifier. The technique is applied to low-intensity beams from field ionization sources, although with appropriate modifications the same method could be applied as a general technique.
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