Investigation of Dependence of Power Transfer on Frequency in the Linac4 Negative Hydrogen Ion Source

• KOBAYASHI Wakaba

  Graduate School of Science and Technology, Keio University

• NISHIDA Kenjiro

  Graduate School of Science and Technology, Keio University

• NOLL Daniel

  CERN

• LETTRY Jacques

  CERN

• HOSHINO Kazuo

  Graduate School of Science and Technology, Keio University

• HATAYAMA Akiyoshi

  Graduate School of Science and Technology, Keio University

抄録

Linac4 is radio frequency (RF) driven type negative hydrogen H⁻ ion source. In the RF system, it is required to match the impedance between the RF-system and plasma loading. In order to match the impedance, it is essential to analyze the plasma impedance. In this study, we analyze the dependence of power transfer on the input parameters (frequency, input power and H₂ gas pressure) by using the plasma impedance prediction model. The results indicate that in the case of frequency = 2 MHz, which is often used in the experiment, efficient power supply is seen in the wide range of input power and H₂ gas pressure. Also, if the optimum value of input power and H₂ gas pressure is input, it may be possible to reduce the influence of the frequency value on the power reflection efficiency.

収録刊行物

• Plasma and Fusion Research

  Plasma and Fusion Research 14 (0), 3401094-3401094, 2019-06-19

  一般社団法人 プラズマ・核融合学会

キーワード

• negative ion source
• RF plasma
• plasma impedance
• impedance mathing
• equivalent circuit model
• parameter survey

詳細情報

• CRID: 1390282763127371136
• NII論文ID: 130007672289
• DOI: 10.1585/pfr.14.3401094
• ISSN: 18806821
• Web Site: https://www.jstage.jst.go.jp/article/pfr/14/0/14_3401094/_pdf
• 本文言語コード: en
• データソース種別:
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  • Crossref
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• 抄録ライセンスフラグ: 使用不可