Divertor plasma simulation experiment using hydrogen ionizing plasma and helium ion beam in an RF plasma source DT-ALPHA

Hiroyuki Takahashi, Takahiko Kobayashi, Peerapat Boonyarittipong, Takeshi Saikyo, Yusuke Ishikawa, Kenta Ogasawara, Atsushi Okamoto, Kenji Tobita, Sumio Kitajima, Hidetoshi Hashizume

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

A helium ion beam was injected into hydrogen ionizing plasma using a radio-frequency plasma source to study divertor plasma. Optical emissions from the hydrogen Balmer series and Fulcher-α band were collected. The emissions of the hydrogen Balmer series clearly increased following the onset of the ion beam injection. The behavior of excited hydrogen atoms slightly depend on its excitation energy. In addition to the Balmer series, the emission from hydrogen molecules increased under the existence of energetic ions. These results indicate that the energetic ion collision affects the population density of the excited hydrogen atoms and molecules.

Original languageEnglish
Article number3401053
JournalPlasma and Fusion Research
Volume13
DOIs
Publication statusPublished - 2018

Keywords

  • Balmer series
  • Divertor
  • Energetic ion
  • Fulcher-α band
  • Radio-frequency

ASJC Scopus subject areas

  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Divertor plasma simulation experiment using hydrogen ionizing plasma and helium ion beam in an RF plasma source DT-ALPHA'. Together they form a unique fingerprint.

Cite this