Electronic Resource
[S.l.]
:
American Institute of Physics (AIP)
Review of Scientific Instruments
56 (1985), S. 922-924
ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
,
Electrical Engineering, Measurement and Control Technology
Notes:
A successful proof-of-principle experimental determination of ion temperature in a tokamak plasma via cw far-infrared (FIR) collective laser scattering from ion Bernstein waves is reported. The Bernstein waves are excited via mode conversion of an externally launched fast Alfven wave at the second-harmonic cyclotron layer. A fit of the experimentally determined ion Bernstein wave dispersion to the temperature-dependent theoretical dispersion yields the local ion temperature. Partial ion temperature profiles (chord averaged) have been obtained with temperature values consistent with charge exchange measurements. Single-shot measurements should be available in the near future with the use of the multichannel scattering systems and high-power laser sources developed at UCLA.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1138043
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