Inflection‐point method of interpreting emissive probe characteristics
作者:
J. R. Smith,
N. Hershkowitz,
P. Coakley,
期刊:
Review of Scientific Instruments
(AIP Available online 1979)
卷期:
Volume 50,
issue 2
页码: 210-218
ISSN:0034-6748
年代: 1979
DOI:10.1063/1.1135789
出版商: AIP
数据来源: AIP
摘要:
The use of emissive Langmuir probes in unmagnetized and weakly magnetized multidipole plasmas is investigated. It is shown that plasma potential, plasma electron temperature, and probe temperature can be determined from one probe characteristic curve. Data indicate that the inflection point of the current‐voltage curve gives the plasma potential to an accuracy the order of the probe temperatureTw/efor weak probe emission. Effects of space‐charge limiting and contamination of the probe are presented.
点击下载:
PDF
(600KB)
返 回