Finding the radial parallel temperature profile in a non-neutral plasma using equilibrium calculations on experimental data

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Permanent URL	http://hdl.lib.byu.edu/1877/1290
Title	Finding the radial parallel temperature profile in a non-neutral plasma using equilibrium calculations on experimental data
BYU Creator	Hart, Grant W. Peterson, Bryan G.
Keywords	radial temperature profile; pure-electron plasma; equilibrum calculations; Malmberg-Penning trap;
Description/Abstract	In 1992, Eggleston et al. [D. L. Eggleston et al., Phys. Fluids B 4, 3432 (1992)] reported on a technique for measuring the radial temperature profile in a pure-electron plasma confined in a Malmberg-Penning trap by partially dumping the plasma onto a charge collector at the end of the trap. For short plasmas and short confining rings, the assumptions in their paper are violated and a more general calculation is needed. This paper presents a variation of the standard equilibrium calculation to find the temperature profile of a pure-electron plasma. Eggleston's shortcut "evaporation" temperature method is found to require a correction factor that can be calculated using methods described in this paper. For typical conditions, the evaporation method overstates the actual temperature by a factor ranging from 1.1 to 1.5 or more, depending on the plasma's total charge and temperature and the geometry of the trap.
Source	Hart, Grant W. and Bryan G. Peterson."Finding the radial parallel temperature profile in a non-neutral plasma using equilibrium calculations on experimental data." Physics of Plasmas 13 (2006).;
Publisher	AIP
Date Original	2006-02-08
Language	English eng en
Publication Type	Articles
Type	Text
Format	application/pdf
Owning Institution	Brigham Young University
BYU College	College of Physical and Mathematical Sciences
BYU Department	Physics and Astronomy
Copyright Status	(c) 2006 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in The Journal of Chemical Physics and may be found at http://link.aip.org/link/?PHPAEN/13/022101/1;
Copyright Use Information	http://www.lib.byu.edu/generic_copyright.html

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Finding the radial parallel temperature profile in a non-neutral plasma using equilibrium calculations on experimental data

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