Study of the negative ion extraction mechanism from a double-ion plasma in negative ion sources

I. Goto, K. Miyamoto, S. Nishioka, A. Hatayama

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

We have developed a 2D3V-PIC model of the extraction region, aiming to clarify the basic extraction mechanism of H - ions from the double-ion plasma in H - negative ion sources. The result shows the same tendency of the H - ion density nH - as that observed in the experiments, i.e.,nH - in the upstream region away from the plasma meniscus (H - emitting surface) has been reduced by applying the extraction voltage. At the same time, relatively slow temporal oscillation of the electric potential compared with the electron plasma frequency has been observed in the extraction region. Results of the systematic study using a 1D3V-PIC model with the uniform magnetic field confirm the result that the electrostatic oscillation is identified to be lower hybrid wave. The effect of this oscillation on the H - transport will be studied in the future.

本文言語English
ホスト出版物のタイトル4th International Symposium on Negative Ions, Beams and Sources, NIBS 2014
編集者Werner Kraus, Paul McNeely
出版社American Institute of Physics Inc.
ISBN(電子版)9780735412972
DOI
出版ステータスPublished - 2015 4 8
イベント4th International Symposium on Negative Ions, Beams and Sources, NIBS 2014 - Garching, Germany
継続期間: 2014 10 62014 10 10

出版物シリーズ

名前AIP Conference Proceedings
1655
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

Conference

Conference4th International Symposium on Negative Ions, Beams and Sources, NIBS 2014
CountryGermany
CityGarching
Period14/10/614/10/10

ASJC Scopus subject areas

  • Physics and Astronomy(all)

フィンガープリント 「Study of the negative ion extraction mechanism from a double-ion plasma in negative ion sources」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル