TITLE

Probe measurements of electron temperature and density in strongly magnetized plasma

AUTHOR(S)
Ratynskaia, S. V.; Ratynskaia, S.V.; Demidov, V. I.; Demidov, V.I.; Rypdal, K.
PUB. DATE
September 2000
SOURCE
Review of Scientific Instruments;Sep2000, Vol. 71 Issue 9
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
It was demonstrated that with increasing probe length the electron saturation current becomes more independent of the probe potential. This provides higher accuracy of measurements of the electron density and plasma potential in a strongly magnetized plasma (B>0.1 T). Long probes oriented parallel to the magnetic field yield better spatial resolution in the perpendicular direction. Parallel probes, however, are very sensitive to alignment errors. To avoid this problem, a cylindrical probe with a side surface coated by a thin insulating layer is proposed. © 2000 American Institute of Physics.
ACCESSION #
4410301

 

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