Increase in Ion Temperature by Slow Wave Heating in Magnetosphere Plasma Device RT-1

• NISHIURA Masaki

  Graduate School of Frontier Sciences, The University of Tokyo

• YOSHIDA Zensho

  Graduate School of Frontier Sciences, The University of Tokyo

• YANO Yoshihisa

  Graduate School of Frontier Sciences, The University of Tokyo

• KAWAZURA Yohei

  Graduate School of Frontier Sciences, The University of Tokyo

• MUSHIAKE Toshiki

  Graduate School of Frontier Sciences, The University of Tokyo

• SAITOH Haruhisa

  Graduate School of Frontier Sciences, The University of Tokyo

• YAMASAKI Miyuri

  Graduate School of Frontier Sciences, The University of Tokyo

• KASHYAP Ankur

  Graduate School of Frontier Sciences, The University of Tokyo

• TAKAHASHI Noriki

  Graduate School of Frontier Sciences, The University of Tokyo

• NAKATSUKA Masataka

  Graduate School of Frontier Sciences, The University of Tokyo

• TAKASE Yuichi

  Graduate School of Frontier Sciences, The University of Tokyo

• FUKUYAMA Atsushi

  Department of Nuclear Engineering, Kyoto University

Abstract

Ion cyclotron range of frequencies (ICRF) heating with a frequency of a few MHz and an input power of 10 kW was applied for the first time, to the best of our knowledge, in a magnetosphere plasma device. An antenna was installed near the pole of a dipole field for slow-wave excitation. Further, a ∩-shaped antenna was implemented and characterized for efficient ion heating. Electron cyclotron heating with an input power of 8 kW sustained helium plasmas with a fill gas pressure of 3 mPa. ICRF heating was then superimposed onto the target plasma (H, D, and He). While the ICRF power was turned on, the increase in ion temperatures was observed for low-pressure helium plasmas. However, the temperature increase was not clearly observed for hydrogen and deuterium plasmas. We discuss the experimental results in terms of power absorption based on result calculated with the TASK/WF2 code.

Journal

• Plasma and Fusion Research

  Plasma and Fusion Research 11 (0), 2402054-2402054, 2016

  The Japan Society of Plasma Science and Nuclear Fusion Research

Keywords

• magnetosphere plasma
• ion heating
• slow wave
• high beta

Details

• CRID: 1390001205255382528
• NII Article ID: 130005395218
• NII Book ID: AA12346675
• DOI: 10.1585/pfr.11.2402054
• ISSN: 18806821
• HANDLE: 10655/00013329
• Web Site: https://nifs-repository.repo.nii.ac.jp/records/11401
• Web Site: https://www.jstage.jst.go.jp/article/pfr/11/0/11_2402054/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • IRDB
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed