Ion heating and flows in a high power helicon source

被引：14

作者：

Thompson, Derek S. ^{[1
]}

Agnello, Riccardo ^{[2
]}

Furno, Ivo ^{[2
]}

Howling, Alan ^{[2
]}

Jacquier, Remy ^{[2
]}

Plyushchev, Gennady ^{[2
]}

Scime, Earl E. ^{[1
]}

机构：

[1] West Virginia Univ, Dept Phys & Astron, Morgantown, WV 26506 USA

[2] Ecole Polytech Fed Lausanne, SPC, CH-1015 Lausanne, Switzerland

来源：

PHYSICS OF PLASMAS | 2017年 / 24卷 / 06期

基金：

美国国家科学基金会;

关键词：

LASER-INDUCED FLUORESCENCE; PLASMA; TEMPERATURE; EXCITATION; ANTENNA; WAVES;

D O I：

10.1063/1.4985328

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：

We report experimental measurements of ion temperatures and flows in a high power, linear, magnetized, helicon plasma device, the Resonant Antenna Ion Device (RAID). Parallel and perpendicular ion temperatures on the order of 0.6 eV are observed for an rf power of 4 kW, suggesting that higher power helicon sources should attain ion temperatures in excess of 1 eV. The unique RAID antenna design produces broad, uniform plasma density and perpendicular ion temperature radial profiles. Measurements of the azimuthal flow indicate rigid body rotation of the plasma column of a few kHz. When configured with an expanding magnetic field, modest parallel ion flows are observed in the expansion region. The ion flows and temperatures are derived from laser induced fluorescence measurements of the Doppler resolved velocity distribution functions of argon ions. Published by AIP Publishing.

引用

页数：8

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