Langmuir Probe Diagnostics in the ELMAX Plasma Device.
AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO SCHOOL OF ENGINEERING
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Cylindrical Langmuir probes were used to determine quiescent plasma conditions and instability thresholds in a mirror geometry magnetoplasma experiment ELMAX. Radial profiles of electron temperature, density, and velocity distribution were measured in an argon plasma maintained by two magnetic annular arc sources. A digital data recording system was devised which facilitated reduction of the probe curves with a computer program using collisionless probe theory. For magnetic fields below 400 gauss the peak values of electron temperature and density were 40,000 degrees K and 10 to the 13th powercc respectively, and observed density oscillations were less than 5. Author
- Fusion Devices (Thermonuclear)
- Plasma Physics and Magnetohydrodynamics