Journal
JOURNAL OF PHYSICS D-APPLIED PHYSICS
Volume 48, Issue 39, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0022-3727/48/39/395201
Keywords
plasma diagnostics; sheath; Langmuir probes; plasma physics
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Funding
- U.S. DOE [DE-FG02-97ER54437]
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Experimental and modelling studies were performed to investigate how the presence of a virtual cathode (Forest and Herschkowitz 1986 J. Appl. Phys. 60 1295) near a planar Langmuir probe affects its accuracy in electron temperature measurements. It is found that the effect of the virtual cathodes causes the I-V trace to flatten and falsely create higher electron temperature measurements.
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