Microwave resonances of a hairpin probe in a magnetized plasma

Gogna, G. S.; Karkari, S. K.
April 2010
Applied Physics Letters;4/12/2010, Vol. 96 Issue 15, p151503
Academic Journal
The effect due to the electron cyclotron frequency on the microwave resonances of a hairpin probe is investigated in a moderate to strongly magnetized plasma. The magnetic field is independently varied over a wide range from 0.01–0.13 T while maintaining the local plasma density constant. At strong magnetic fields the resonance frequency is found to be lower than that measured in vacuum implying that the relative plasma dielectric permittivity, [variant_greek_epsilon]p>1. It is proposed that the experiments reported here are consistent with a permittivity model that includes magnetic field.


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