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Asymmetries of Double Probe Characteristics Observed in the PSI‐1
Author(s) -
Klose S.,
Meyer H.,
Laux M.
Publication year - 1998
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.19980380117
Subject(s) - langmuir probe , plasma , plasma diagnostics , atomic physics , plasma parameters , materials science , electron temperature , electron , optics , physics , nuclear physics
Measurements of the plasma parameters in the PSI‐1 linear device, using a radially moving Langmuir double probe, are presented. The interpretation of the asymmetric I‐U‐characteristics is based on slight differences of the areas, plasma densities, electron temperatures, and plasma potentials of the two tips. These inhomogenities are explained by an aberration effect of the probe path with respect to the axis of the plasma column.