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Author Meyer, D. ♦ Nadzeyka, A. ♦ Remscheid, A. ♦ Wiesemann, K.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PLASMA PHYSICS AND FUSION ♦ PHYSICS ♦ ION SOURCES ♦ PLASMA HEATING ♦ ARGON ♦ ELECTRON CYCLOTRON-RESONANCE ♦ LIGHT IONS ♦ MAGNETOACOUSTIC WAVES ♦ PLASMA CONFINEMENT ♦ HYDROGEN ♦ MULTICHARGED IONS ♦ CHARGE STATES ♦ NANO AMP BEAM CURRENTS
Abstract The experiments described here were performed at a 5 GHz electron-cyclotron-resonance ion source with a magnetic hexapole. The discharge was run in argon. By launching a fast magnetoacoustic wave from the high-field side (end on) we heated hydrogen ions{emdash}present in traces from the residual gas{emdash}at their fundamental ion cyclotron resonance (ICR) frequency of 2.2 MHz with 5 W only. As a consequence the currents of Ar{sup {ital q}+} ions extracted from the source were significantly increased for {ital q}{ge}5 while the currents of lower charged argon ions were decreased, indicating an enhanced plasma confinement. However, a reduction of the hydrogen content in the residual gas resulted in a reversal of the effect of ICR heating. {copyright} {ital 1996 American Institute of Physics.}
ISSN 00346748
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-03-01
Publisher Place United States
Journal Review of Scientific Instruments
Volume Number 67
Issue Number 3
Technical Publication No. CONF-9509125-


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