Thermally excited modes in a pure electron plasma.
Thermally excited plasma modes are observed in near-thermal-equilibrium pure electron plasmas over a temperature range of 0.05<kT<5 eV. The measured thermal emission spectra together with a plasma-antenna coupling calibration uniquely determine the temperature. This calibration is obtained from the spectra themselves when absorption of the receiver-generated noise is significant, or from kinetic theory. This nondestructive temperature diagnostic agrees well with standard diagnostics and may be useful for expensive species such as antimatter.
Anderegg
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F
Institute for Pure and Applied Physical Sciences and University of California at San Diego, La Jolla, California 92093, USA.
Shiga
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N
Danielson
J R
JR
Dubin
D H E
DH
Driscoll
C F
CF
Gould
R W
RW