ENHANCEMENT OF EFFICIENCY FOR LOWER HYBRID CURRENT DRIVE BY ELECTRON CYCLOTRON HEATING IN THE WT-2 TOKAMAK.

A. Ando; K. Ogura; G. Tanaka; M. Iida; S. Ide; M. Nakamura; T. Maekawa; Y. Terumichi; S. Tanaka

doi:10.1088/0029-5515/26/1/010

ENHANCEMENT OF EFFICIENCY FOR LOWER HYBRID CURRENT DRIVE BY ELECTRON CYCLOTRON HEATING IN THE WT-2 TOKAMAK.

A. Ando, K. Ogura, G. Tanaka, M. Iida, S. Ide, M. Nakamura, T. Maekawa, Y. Terumichi, S. Tanaka

ENG - Electrical Engineering

Kyoto University

Research output: Contribution to journal › Article › peer-review

34 Citations (Scopus)

Abstract

Injection of electron cyclotron (EC) waves into the lower hybrid (LH) current-sustained plasma in WT-2 increases the efficiency and the ramp-up rate of the LH-driven current when the high-energy electrons that couple to the LH waves are EC-heated. On the contrary, the efficiency decreases and the current ramp-up rate becomes negative when the bulk electrons are EC-heated. This selective EC-heating of bulk electrons or high-energy electrons is achieved by changing the radial position of the EC resonance layer in the plasma column.

Original language	English
Pages (from-to)	107-111
Number of pages	5
Journal	Nuclear Fusion
Volume	26
Issue number	1
DOIs	https://doi.org/10.1088/0029-5515/26/1/010
Publication status	Published - 1986

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abstract = "Injection of electron cyclotron (EC) waves into the lower hybrid (LH) current-sustained plasma in WT-2 increases the efficiency and the ramp-up rate of the LH-driven current when the high-energy electrons that couple to the LH waves are EC-heated. On the contrary, the efficiency decreases and the current ramp-up rate becomes negative when the bulk electrons are EC-heated. This selective EC-heating of bulk electrons or high-energy electrons is achieved by changing the radial position of the EC resonance layer in the plasma column.",

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AU - Ando, A.

AU - Ogura, K.

AU - Tanaka, G.

AU - Iida, M.

AU - Ide, S.

AU - Nakamura, M.

AU - Maekawa, T.

AU - Terumichi, Y.

AU - Tanaka, S.

PY - 1986

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N2 - Injection of electron cyclotron (EC) waves into the lower hybrid (LH) current-sustained plasma in WT-2 increases the efficiency and the ramp-up rate of the LH-driven current when the high-energy electrons that couple to the LH waves are EC-heated. On the contrary, the efficiency decreases and the current ramp-up rate becomes negative when the bulk electrons are EC-heated. This selective EC-heating of bulk electrons or high-energy electrons is achieved by changing the radial position of the EC resonance layer in the plasma column.

AB - Injection of electron cyclotron (EC) waves into the lower hybrid (LH) current-sustained plasma in WT-2 increases the efficiency and the ramp-up rate of the LH-driven current when the high-energy electrons that couple to the LH waves are EC-heated. On the contrary, the efficiency decreases and the current ramp-up rate becomes negative when the bulk electrons are EC-heated. This selective EC-heating of bulk electrons or high-energy electrons is achieved by changing the radial position of the EC resonance layer in the plasma column.

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ENHANCEMENT OF EFFICIENCY FOR LOWER HYBRID CURRENT DRIVE BY ELECTRON CYCLOTRON HEATING IN THE WT-2 TOKAMAK.

Abstract

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