Wide Band Electrostatic Probes for Use in Tenuous Plasmas
J. C. Sprott
Physics Department, University of
Wisconsin, Madison, Wisconsin 53706
(Received 28 January 1966 and in final form, 8 March 1966)
A derivation is given for the resistance of the sheath surrounding a
probe and the corresponding limitation to the frequency response. The
is increased by using probes with built-in attenuators which measure
in floating potential, electric field, and ion saturation current at
up to 40 MHz with plasma densities as low as 10^9 /cc.
Ref: J. C. Sprott, Rev. Sci. Instrum. 37,
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