A two-frequency pulse refractometer for measuring the electron density in tokamaks

An instrument for fringe-jumps free measurements of the electron concentration and estimations of the peaking factor of density distributions in magnetic confinement plasma devices with probing at frequencies close to the cutoff is described. The instrument is intended to perform measurements in a 5...

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Bibliographic Details
Published in:Instruments and experimental techniques (New York) 2011-07, Vol.54 (4), p.596-597
Main Authors: Petrov, V. G., Malyshev, A. Yu, Petrov, A. A., Markov, V. K.
Format: Article
Language:English
Subjects:
Electrical Engineering
Instruments Manufactured at Laboratories
Measurement Science and Instrumentation
Physical Chemistry
Physics
Physics and Astronomy
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Description
Summary:An instrument for fringe-jumps free measurements of the electron concentration and estimations of the peaking factor of density distributions in magnetic confinement plasma devices with probing at frequencies close to the cutoff is described. The instrument is intended to perform measurements in a 5 × 10 18 –10 20 m −3 density range (while probing by the extraordinary wave) with time resolution ∼10 μs.
ISSN:0020-4412
1608-3180
DOI:10.1134/S0020441211030183