Stability of liquid-metal ion sources |
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Authors: | V V Vladimirov V N Gorshkov |
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Institution: | (1) Physics Institute, Ukrainian SSR Academy of Science (Kiev), Prospect Nauki 144, SU-252650 Kiev 28, GSP, USSR |
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Abstract: | In this paper we find the parameters (radii, lengths, velocities) of the jets produced in liquid-metal ion sources. The jet stability with respect to developing sausages (Rayleigh instability) is studied. The Rayleight instability is shown to occur for rather large currents (in long jets). The currents critical for the instability initiation are calculated for Ga and Au sources. The results are in accordance with the experimental data available. In the case of Ga, the accordance is achieved only for the hot jet model (T T
m
, whereT
m
is the melting temperature), when the viscosity is appreciably lower. |
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Keywords: | 68 10 79 70 |
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