Development of a 14 GHz Microwave H－ Source
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概要
- 論文の詳細を見る
Microwave power at 14 GHz has excited a H2 plasma in a 2 cm inner diameter 9 cm long alumina tube to generate negative hydrogen ion (H－) beam. A pair of permanent magnets created a magnetic field with the intensity corresponding to an electron cyclotron resonance condition for the input microwave. The ion source produced stable plasmas with the H2 pressure more than 0.5 Pa, while the amount of H－ current decreased exponentially against increasing ion source pressure above 0.6 Pa. When the source produced H－ beam with constant H2 pressure at 0.6 Pa, the H－ beam current saturated against the increase of microwave power above 200 W. These characteristics of the H－ beam current indicate poor transport of vibrationally excited hydrogen molecules and that of H－ to the ion extraction electrode.
- 社団法人 プラズマ・核融合学会の論文
著者
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Wada Motoi
Graduate School Of Engineering Doshisha University
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NISHIURA Masaki
National Institute for Fusion Science
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Kasuya Toshiro
Graduate School Of Engineering Doshisha University
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YAMAOKA Hitoshi
RIKEN (The Institute of Physical and Chemical Research)
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Wada Motoi
Graduate School of Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
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NISHIDA Tomoaki
Graduate School of Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
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MAENO Shuichi
Novelion Systems Co. Ltd , Kyotanabe, Kyoto 610-0394, Japan
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DEMURA Yasuhiro
Graduate School of Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
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KENMOTSU Takahiro
Faculty of Life and Medical Sciences, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
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SHINTO Katsuhiro
Japan Atomic Energy Agency, Rokkasho, Aomori 039-3212, Japan
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