The Regimes for Sustaining a Hollow-Cathode Glow Discharge with a Hot Filament Inside the Cavity

Autor:	Oleg B. Frants, Yu. D. Korolev, I. A. Shemyakin, N. V. Landl, Vladimir G. Geyman, S. S. Kovalskii, V. S. Kasyanov, I. V. Lopatin
Rok vydání:	2020
Předmět:	010302 applied physics Glow discharge Materials science 010308 nuclear & particles physics General Physics and Astronomy Thermionic emission Hot cathode 01 natural sciences Cathode Ion law.invention Protein filament law 0103 physical sciences Atomic physics Current (fluid) Voltage
Zdroj:	Russian Physics Journal. 62:2024-2032
ISSN:	1573-9228 1064-8887
DOI:	10.1007/s11182-020-01940-9
Popis:	The results of investigations of a low-pressure hollow-cathode glow discharge with a hot filament (thermionic cathode) inside the cavity are presented. The current-voltage characteristics (CVCs) of the discharge and the dependences of the current delivered to the thermionic and hollow cathodes on the discharge burning voltage are obtained at different gas pressures and filament currents. It is shown that the major fraction of the current is transferred in the thermionic cathode circuit. For interpretation of the CVCs, a model is accepted, which uses a generalized coefficient (rather than a conventionally utilized secondary-emission coefficient), which includes not only the cathode bombardment with ions but also the emission current induced by an external source. An estimation is made of the discharge parameters. The model is shown to be quite consistent with the experiment.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4b1501e05f2fb55609961f6b54e5bde8 https://doi.org/10.1007/s11182-020-01940-9 Zobrazit plný text záznamu Plný text ve formátu PDF