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25 July 1989 Xenon Mixing In A Cesium-Free Dudnikov-Type Hydrogen Ion Source
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Abstract
The operation of a Dudnikov-type H- ion source using lanthanum hexaboride as the cathode material has been achieved and has been previously reported. The cesium-free operation achieved by using this thermionic emitter is of benefit to the overall neutral particle beam system performance. The source requirement for a neutral particle beam will require higher output from this source. The experimental apparatus is a Penning-type discharge ion source with a variable magnetic field. A brief discussion of the parametric optimization will be covered. In an effort to further increase performance of the Dudnikov source, xenon and argon have been added to the hydrogen fuel used in the source. The inert gas has been added in small amounts (0.2-2.0%) as the H- and e- levels were monitored. Apparatus, diagnostics and results will be discussed.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Y. D. Jones, R. P. Copeland, M. A. Parman, and E. A. Baca "Xenon Mixing In A Cesium-Free Dudnikov-Type Hydrogen Ion Source", Proc. SPIE 1061, Microwave and Particle Beam Sources and Directed Energy Concepts, (25 July 1989); https://doi.org/10.1117/12.951842
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