Coulomb interactions in Ga LMIS
Status PubMed-not-MEDLINE Language English Country Netherlands Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
17692463
DOI
10.1016/j.ultramic.2007.07.004
PII: S0304-3991(07)00176-3
Knihovny.cz E-resources
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
For low emission currents from around 1 microA Ga liquid-metal ion sources (LMIS) produce fine optically bright ion beams that are strongly limited by the Coulomb particle-particle interactions. We present computations of the energy spread, the beam virtual crossover size, and beam brightness based on direct numerical integration of the equation of motion in a numerically calculated field for a number of dimensions of the emission tip. The Coulomb particle-particle interactions are included into the calculation of ion beam evolution. A comparison with experimental data allows to estimate the tip size.
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