Diagnostic Methods and Instability Suppression Techniques for a Mirror Geometry Plasma with Radial Electric Fields.
Final rept. 1 Aug 69-30 Jun 73,
WRIGHT STATE UNIV DAYTON OHIO DEPT OF PHYSICS
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Theoretical and experimental work on a rotating magnetoplasma in 41 mirror geometry is described. The properties of seven plasma sources are summarized. The main plasma source, consisting of a helical Lisitano coil and spiral thermionic filament to create a parabolic potential profile, produced a plasma having the following parameters at the center point density 1E17 to 5E18cu meter, electron temperature 1.5E4 to 3E4 deg. K, ion temperature 3E3 to 2E4 deg. K, magnetic induction 0.02 to 0.04T, radial electric field up to 100 V.m in a neutral argon pressure of 1.8 mTorr. A rapid method for determining time-resolved plasma parameters using Langmuir probes, boxcar integrator, memory display unit and minicomputer is described. A theory of collisional drift waves for a partially ionized magnetoplasma with ion temperature not equal to electron temperature is described. Modified author abstract
- Plasma Physics and Magnetohydrodynamics