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Current-voltage curves in liquid metal ion sources

Authors
Journal
Vacuum
0042-207X
Publisher
Elsevier
Publication Date
Volume
36
Identifiers
DOI: 10.1016/0042-207x(86)90124-7

Abstract

Abstract A space-charge-based model predicting the current-voltage curves of liquid metal ion sources (LMIS), consisting of cylindrical, liquid-metal-filled capillaries, is shown to apply to other LMIS configurations, such as liquid-metal-covered needles, of sufficiently low flow impedance. The model is tested for a wide range of experimental results, some by the author and some by others. Some implications of the model are discussed, and its consistency is demonstrated with observations of the shape of the liquid emitter and with recent numerical calculations predicting this shape.

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