Accession Number:

AD0726990

Title:

Langmuir Probe Diagnostics in the ELMAX Plasma Device.

Descriptive Note:

Master's thesis,

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO SCHOOL OF ENGINEERING

Personal Author(s):

Report Date:

1971-03-01

Pagination or Media Count:

100.0

Abstract:

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

Subject Categories:

  • Fusion Devices (Thermonuclear)
  • Plasma Physics and Magnetohydrodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE