An Experimental Study of the Effects of Surface and Gas Contamination on Langmuir Probe Measurements in an Argon Glow Discharge.
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1969
- Accession Number
- AD0854364
Entities
People
- Timothy Louis Thomas
Organizations
- Air Force Institute of Technology