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Density of fast electrons on the Axis of a Zylindrical Hollow‐Cathode Discharge
Author(s) -
Handle F.,
Lindinger W.,
Howorka F.,
Pahl M.
Publication year - 1984
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.19840240409
Subject(s) - cathode , atomic physics , body orifice , electron , glow discharge , plasma , electric discharge in gases , ion , axial symmetry , materials science , electron density , chemistry , physics , nuclear physics , biology , ecology , organic chemistry , quantum mechanics
Fast electrons leaving a hollow cathode discharge axially through the orifice of a hole probe undergo ionizing collisions with the discharge gas in and behind the orifice. Ar ++ ions produced in this way are used as a monitor for the density of fast electrons, N ef , on the axis of the negative glow of a cylindrical hollow cathode discharge. Data on N ef as dependent on the pressure of the Ar discharge gas and on the discharge current are obtained and an analytical expression for these dependences is found and discussed.