Simple heatable Langmuir probe for alkali plasmas
作者:
Daniela Strele,
Mark Koepke,
Roman Schrittwieser,
Patrick Winkler,
期刊:
Review of Scientific Instruments
(AIP Available online 1997)
卷期:
Volume 68,
issue 10
页码: 3751-3754
ISSN:0034-6748
年代: 1997
DOI:10.1063/1.1148021
出版商: AIP
数据来源: AIP
摘要:
A new type of small, simple, indirectly heatable Langmuir probe for measurements in alkaline plasmas is presented. The heating element of this probe consists of an elogated half-loop of Ta-wire wound helically, around a thin ceramic tube that carries the probe collector. It is situated as closely as possible to the latter. The necessary heating power is a few watts. It is shown that the inevitable alkaline coating of the probe collector can be removed by sufficient heating. Various types of coating and their influence on the probe characteristic are discussed. ©1997 American Institute of Physics.
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