| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2025-03-04 |
| タイトル |
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タイトル |
Modelling of plasma discharge in a filament negative ion source |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Valeria Candeloro
Emanuele Sartori
Kisaki Masashi
Kashiwagi Mieko
Tobari Hiroyuki
Gianluigi Serianni
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
Most of the currently operating Negative ion Neutral Beam Injectors (N-NBIs) exploit filament powered sources for the generation of beam ions. Being widely used in fusion experiments, the filament arc technology has been thoroughly investigated and optimized over the years, allowing to achieve excellent performances in terms of extracted beam optics. The source geometry, the magnetic field topology and the arc power strongly influence both the plasma discharge and the background gas properties and, consequently, the beam features. In this framework, this contribution describes a numerical investigation of the plasma properties in a filament-powered negative ion source, performed by means of a 2D3V Particle In Cell-Monte Carlo Collisions (PIC-MCC) code. Specifically, we discuss plasma formation by the thermionic electrons emitted by the filaments, investigating their interaction with the background gas. We also study the plasma diffusion through the magnetic filter field and how the latter modifies plasma density, electron temperature and plasma potential along the axial direction when approaching the plasma facing electrode. |
| 書誌情報 |
Journal of Physics: Conference Series
巻 2743,
号 012035,
p. 1-6,
発行日 2024-05
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| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.1088/1742-6596/2743/1/012035 |
