A new capacitive/resistive probe method for studying magnetic surfaces

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

doi:10.1143/JJAP.30.2606

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 journal › Article › peer-review

12 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 language	English
Pages (from-to)	2606-2610
Number of pages	5
Journal	Japanese journal of applied physics
Volume	30
Issue number	10R
DOIs	https://doi.org/10.1143/JJAP.30.2606
Publication status	Published - 1991 Oct
Externally published	Yes

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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10.1143/JJAP.30.2606

Cite this

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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.",

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AU - Kitajima, Sumio

AU - Takayama, Masakazu

AU - Zama, Tatsuya

AU - Takaya, Kazuhiro

AU - Takeuchi, Nobunao

AU - Watanabe, Hiroshige

PY - 1991/10

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N2 - 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.

AB - 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.

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KW - Magnetic island

KW - Magnetic surface

KW - Nuclear fusion

KW - Plasma physics

KW - Stellarator

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A new capacitive/resistive probe method for studying magnetic surfaces

Abstract

Keywords

ASJC Scopus subject areas

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