Ion Doppler Spectroscopic Measurement with a Multi-channel PMT on Spheromak Plasmas

• Nagata Masayoshi

  Graduate School of Engineering, Himeji Institute of Technology

• Uyama Tadao

  Graduate School of Engineering, Himeji Institute of Technology

Bibliographic Information

Other Title

• スフェロマックプラズマにおける多チャンネルＰＭＴを用いたイオンドップラー分光計測

Abstract

An ion Doppler spectrometer (IDS) using a compact 16 channel photomultiplier tube (PMT) has been developed and used to measure ion temperature and toroidal rotation speed on SSPX gun-spheromaks. Doppler broadening of OV spectral line shows higher ion temperature (-500 eV) as compared to the electron temperature, which indicates anomalous ion heating due to MHD relaxation. It has been also found that the plasma rotates with a speed of 60 km/s in the direction of E×B.

Journal

• IEEJ Transactions on Fundamentals and Materials

  IEEJ Transactions on Fundamentals and Materials 124 (2), 217-218, 2004

  The Institute of Electrical Engineers of Japan

Keywords

• ion doppler spectroscopy
• coaxial helicity injection
• spheromak
• multi-channel PMT

Details

• CRID: 1390282679569443712
• NII Article ID: 10011965010
• NII Book ID: AN10136312
• DOI: 10.1541/ieejfms.124.217
• ISSN: 13475533
• ISSN: 03854205
• Web Site: http://www.jstage.jst.go.jp/article/ieejfms/124/2/124_2_217/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed