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Anomalously high emissivity of a thermionic cathode for an arc discharge in inert gases

Journal Article · · High Temp. (USSR) (Engl. Transl.); (United States)
OSTI ID:7297587
The mechanism underlying the transmission of current to the cathode for an arc discharge in inert gases is considered on the basis of the diffusion equations. For the range of parameters indicated in 1, an approximate system of algebraic equations is obtained for determining the value of the total current passing to the cathode. It is shown that the results of the experiments described in 1 may be explained if allowance is made for the ionic current from the discharge plasma, no anomalously high emissivity of the thermionic cathode then being present. Numerical calculations are carried out for certain values of the parameters of 1. The results agree closely with the experimental data 1. (AIP)
Research Organization:
Moscow
OSTI ID:
7297587
Journal Information:
High Temp. (USSR) (Engl. Transl.); (United States), Journal Name: High Temp. (USSR) (Engl. Transl.); (United States) Vol. 13:3; ISSN HITEA
Country of Publication:
United States
Language:
English