Technique to increase the H+ ion fraction in a multicusp source
- 1 October 1983
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 54 (10) , 1296-1299
- https://doi.org/10.1063/1.1137261
Abstract
It is possible to filter out the primary ionizing electrons from the ion extraction region of a multicusp source by installing the filament inside the dipole fields of the permanent magnets and thereby enhance the H+ ion species in the extracted beam. An optimum position of the filament has been determined such that a quiescent plasma together with a uniform plasma density profile across the extraction plane can be obtained.Keywords
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