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Zündspannung und normaler Katodenfall der Glimmentladung für Edelgase und reine Molybdänkatoden
Author(s) -
Pech P.
Publication year - 1971
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.19710110304
Subject(s) - cathode , atomic physics , electron , ionization , glow discharge , molybdenum , ion , chemistry , inert gas , analytical chemistry (journal) , materials science , physics , plasma , nuclear physics , inorganic chemistry , organic chemistry , chromatography
Breakdown voltage near P ASCHEN ‐minimum and normal cathode fall of the glow discharge were calculated for inert gases and molybdenum cathodes on the basis of a simple theory. The method used was similar to T AKEISHI 's one. The calculated breakdown voltages are in good agreement with measured values, if back scattering of the y i ‐electrons and the distance which electrons travel from the cathode without ionization is taken into account. In the case of the normal cathode fall the values calculated with the same assumptions for inert gases and molybdenum cathodes are much higher (up to 50%) than the well known experimental values. It was concluded, that the y i ‐process in the glow discharge ist not the only important one. Comparing the calculated and experimental values of the normal cathode fall we obtain the result, that photons and/or ions from the glow release about 40–60% of all electrons at the cathode.