A new capacitive/resistive probe method for studying magnetic surfaces

Sumio Kitajima, Masakazu Takayama, Tatsuya Zama, Kazuhiro Takaya, Nobunao Takeuchi, Hiroshige Watanabe

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

A new capacitive/resistive probe method for mapping the magnetic surfaces from resistance or capacitance between a magnetic surface and a vacuum vessel was developed and tested. Those resistances and capacitances can be regarded as components of a simple electrical bridge circuit. This method exploits electrical transient response of the bridge circuit for a square pulse. From equiresistance or equicapacitance points, the magnetic surface structure can be deduced. Measurements on the Tohoku University Heliac, which is a small-size standard heliac, show good agreement with numerical calculations. This method is particularly useful for pulse-operated machines.

Original languageEnglish
Pages (from-to)2606-2610
Number of pages5
JournalJapanese journal of applied physics
Volume30
Issue number10R
DOIs
Publication statusPublished - 1991 Oct

Keywords

  • Electron beam
  • Heliac
  • Magnetic island
  • Magnetic surface
  • Nuclear fusion
  • Plasma physics
  • Stellarator

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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  • Cite this

    Kitajima, S., Takayama, M., Zama, T., Takaya, K., Takeuchi, N., & Watanabe, H. (1991). A new capacitive/resistive probe method for studying magnetic surfaces. Japanese journal of applied physics, 30(10R), 2606-2610. https://doi.org/10.1143/JJAP.30.2606