Accession Number : AD0854364

Title :   An Experimental Study of the Effects of Surface and Gas Contamination on Langmuir Probe Measurements in an Argon Glow Discharge.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s) : Thomas, Timothy Louis

Report Date : JUN 1969

Pagination or Media Count : 86

Abstract : An experimental study was made on the effects of probe and gas contamination on cylindrical Langmuir probe measurements in a low pressure argon glow discharge. The rate of contamination was measured and the types of contaminants usually present in the laboratory application of Langmuir probes were identified. It was found that some of the temperatures formerly believed to be anomalous in comparison to theory could be attributed to errors from contamination effects. Various probe cleaning techniques were studied and a combination of electron and ion bombardment was found to be the preferred method. (Author)

Descriptors :   (*GLOW DISCHARGES, LANGMUIR PROBES), (*LANGMUIR PROBES, CONTAMINATION), IMPURITIES, ARGON, CHARGED PARTICLES, ELECTRON DENSITY, PARTICLE TRAJECTORIES, CLEANING, ION BOMBARDMENT, ELECTRON IRRADIATION, GAS DISCHARGES, THESES.

Subject Categories : Test Facilities, Equipment and Methods
      Nuclear Physics & Elementary Particle Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE