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research article

Ion heating and flows in a high power helicon source

Thompson, Derek S.
•
Agnello, Riccardo
•
Furno, Ivo
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2017
Physics Of Plasmas

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.

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Type
research article
DOI
10.1063/1.4985328
Web of Science ID

WOS:000404639000092

Author(s)
Thompson, Derek S.
Agnello, Riccardo
Furno, Ivo
Howling, Alan
Jacquier, Remy
Plyushchev, Gennady
Scime, Earl E.
Date Issued

2017

Publisher

Amer Inst Physics

Published in
Physics Of Plasmas
Volume

24

Issue

6

Article Number

063517

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
SPC  
Available on Infoscience
September 5, 2017
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/140332
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