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Thermally excited Trivelpiece–Gould modes as a pure electron plasma temperature diagnostic

Anderegg, F. and Shiga, N. and Dubin, D. H. E. and Driscoll, C. F. and Gould, R. W. (2003) Thermally excited Trivelpiece–Gould modes as a pure electron plasma temperature diagnostic. Physics of Plasmas, 10 (5). pp. 1556-1562. ISSN 1070-664X.

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Thermally excited plasma modes are observed in trapped, near-thermal-equilibrium pure electron plasmas over a temperature range of 0.05<kT<5 eV. The modes are excited and damped by thermal fluctuations in both the plasma and the receiver electronics. The thermal emission spectra together with a plasma-antenna coupling coefficient calibration uniquely determine the plasma (and load) temperature. This calibration is obtained from the mode spectra themselves when the receiver-generated noise absorption is measurable; or from separate wave reflection/absorption measurements; or from kinetic theory. This nondestructive temperature diagnostic agrees well with standard diagnostics, and may be useful for expensive species such as antimatter.

Item Type:Article
Additional Information:Copyright © 2003 American Institute of Physics. Received 11 November 2002; accepted 19 December 2002. We thank Dr. R. E. Pollock for his seminal contributions and Dr. T. M. O’Neil for many fruitful discussions. This work is supported by Office of Naval Research Grant No. N00014-96-1-0239 and National Science Foundation Grant No. PHY-9876999.
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ID Code:1672
Deposited By: Tony Diaz
Deposited On:10 Feb 2006
Last Modified:26 Dec 2012 08:45

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