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Methods of Wall Charge Determination in External Electrode Gas Discharges. I. Experimental Arrangement
Author(s) -
Kindel E.,
Arndt R.
Publication year - 1980
Publication title -
beiträge aus der plasmaphysik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0005-8025
DOI - 10.1002/ctpp.19800200206
Subject(s) - faraday cup , faraday cage , electrode , voltage , charge density , charge (physics) , atomic physics , electric field , materials science , measure (data warehouse) , mechanics , chemistry , analytical chemistry (journal) , optics , physics , magnetic field , beam (structure) , quantum mechanics , database , computer science , ion beam , chromatography
For direct and absolute determination of wall charges an electrostatic probe method, the field mill and the Faraday cup technique are used. The first scans the charge density distribution, while the two latter methods measure total charge magnitudes. Indirect methods, estimating the wall charges by integration of discharge current pulses are also used in the arrangement. The discharges are generated in a cylindrical quartz insulated Ne + N 2 ‐filled discharge gap by individual voltage pulses having small risetimes and long duration. Preliminary tests, comparison of the methods and first results concerning charge density distributions will be given in part II of this paper.