<RESEARCH REPORT>Comparison between Uramoto Type and Straight Filament Type Sheet Plasma as a Volume Produced H^- Ion Source (II)
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概要
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Each dependence of a H^- ion current on distance (from 3.5cm to 17cm) between a sheet plasma center and the first H^- ion extraction electrode, is investigated for a straight filament type or a Uramoto type sheet plasma. For the straight filament type, the H^- ion current increases initially with the distance and decreases after a maximum. On the other hand, for the Uramoto type, the H^- ion current increases with the distance. Over all the distance, the maximum current of the Uramoto type is about 10 times larger than that of the straight filament type. As a reason for this result, we point out a character that the plasma density and the decay time of negatively charged particles in the Uramoto type sheet plasma, hardly decrease even in the long distance which may be necessary for vibrationally excited H^&sstari;_2 molecules.
- 核融合科学研究所の論文
著者
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Uramoto Joshin
Research Information center, Institute of Plasma Physics, Nagoya University
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Uramoto Joshin
Research Information Center Institute Of Plasma Physics Nagoya University
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