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Abstract

The current-voltage characteristics of wall probes, made from materials of different secondary electron emission, have been measured on the endplates of a small magnetic mirror and in the scrape-off layer of TEXTOR Tokamak. The probes were operated like double Langmuir probes. It is found that for electron temperatures significantly exceeding 10 eV the characteristics become non-symmetric with respect to the ordinate. The results are compared to a theoretical model.

Additional information

Authors: FUCHS G, KERNFORSCHUNGSANLAGE JUELICH GMBH (GERMANY);SCHLARBAUM G, KERNFORSCHUNGSANLAGE JUELICH GMBH (GERMANY);BEUSCHER H, KERNFORSCHUNGSANLAGE JUELICH GMBH (GERMANY);MATHEWS H G, KERNFORSCHUNGSANLAGE JUELICH GMBH (GERMANY);KRAUSS VOGT W KERNFORSCHUNGSANLAGE JUELICH GMBH (GERMANY), KERNFORSCHUNGSANLAGE JUELICH GMBH (GERMANY)
Bibliographic Reference: JOURNAL OF NUCLEAR MATERIALS, VOLS. 145-147 (1987), PP. 268-271
Record Number: 1989126017200 / Last updated on: 1989-03-01
Category: PUBLICATION
Available languages: en