Modelling of mixed-phasing antenna-plasma interactions on JET A2 antennas

被引：37

作者：

D'Ippolito, DA ^{[1
]}

Myra, JR

Ryan, PM

Righi, E

Heikkinen, J

Lamalle, PU

Noterdaeme, JM

机构：

[1] Lodestar Res Corp, Boulder, CO 80301 USA

[2] Oak Ridge Natl Lab, Oak Ridge, TN USA

[3] EFDA CSU Garching, Garching, Germany

[4] VTT, Assoc Euratom Tekes, Espoo, Finland

[5] Max Planck Inst Plasma Phys, Euratom Assoc, IPP, D-85748 Garching, Germany

[6] EFDA JET, Abingdon, Oxon, England

来源：

NUCLEAR FUSION | 2002年 / 42卷 / 12期

关键词：

D O I：

10.1088/0029-5515/42/12/302

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The use of mixed(monopole-dipole)-phasing of a set of ion cyclotron range of frequency antennas is potentially useful to optimize tokamak performance. However, recent mixed-phasing experiments on JET, described here, showed undesirable antenna-plasma interactions under certain circumstances. A possible physical mechanism to explain the experimental results is discussed, namely, rf-driven dc parallel currents flowing between adjacent antennas with different phasings can lead to arcing on the antenna with the largest sheath voltage. Means of controlling the interaction are discussed.

引用

页码：1357 / 1365

页数：9

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