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Measurements of the impedance of a magneto-acoustic wave-launching antenna

Published online by Cambridge University Press:  13 March 2009

B. D. Blackwell  and
B. C. Cross
B. D. Blackwell
Affiliation:
Wills Plasma Physics Department, The University of Sydney, Sydney N.S.W., Australia 2006
B. C. Cross
Affiliation:
Wills Plasma Physics Department, The University of Sydney, Sydney N.S.W., Australia 2006
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Abstract

Magnetoacoustic waves were generated in an argon plasma by passing an RF current through a solenoid antenna surrounding the plasma column. The complex impedance of the antenna was measured as a funcion of wave frequency in order to investigate the column geometric resonances and to obtain estimates of ion density and electron temperature. Although this technique yielded reliable estimates of the ion number density, the wave &litudes near resonance were found to be anomalously low and reliable temperature measurements could not be obtained.

Type
Research Article
Information
Journal of Plasma Physics , Volume 22 , Issue 3 , December 1979 , pp. 499 - 514
Copyright
Copyright © Cambridge University Press 1979

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References

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