Regimes of sustaining the hollow-cathode glow discharge with the hot filament inside the cavity | Izvestiya vuzov. Fizika. 2019. № 11. DOI: 10.17223/00213411/62/11/59

Regimes of sustaining the hollow-cathode glow discharge with the hot filament inside the cavity

The results of investigation of low-pressure glow discharge with the hollow cathode and hot filament (thermionic cathode) inside the cavity are presented. Current-voltage characteristics of the discharge and the values of currents to the thermionic cathode and to the hollow cathode depending on the discharge burning voltage at different gas pressures and different heating currents of thermionic cathode were obtained. It is shown that the main part of discharge current is carried in the circuit of thermionic cathode. Model of the current sustainment in a hollow-cathode glow discharge was used to interpret the current-voltage characteristics. Instead of the conventional secondaryemission coefficient, the model uses a generalized emission coefficient that takes into account not only ion bombardmentof the cathode, but also the emission current from an external source. The estimations of the discharge parameters were done. Model agrees well with the experimental data.

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Keywords

тлеющий разряд, полый катод, нить накала, термокатод, glow discharge, hollow cathode, hot filament, thermionic cathode

Authors

Name	Organization	E-mail
Landl N.V.	Institute of High Current Electronics SB RAS	landl@lnp.hcei.tsc.ru
Korolev Y.D.	Institute of High Current Electronics SB RAS	korolev@lnp.hcei.tsc.ru
Geyman V.G.	Institute of High Current Electronics SB RAS	geyman@lnp.hcei.tsc.ru
Frants O.B.	Institute of High Current Electronics SB RAS	frants@lnp.hcei.tsc.ru
Shemyalin I.A.	Institute of High Current Electronics SB RAS	shemyakin@lnp.hcei.tsc.ru
Kasyanov V.S.	Institute of High Current Electronics SB RAS	kasianov_vs@bk.ru
Lopatin I.V.	Institute of High Current Electronics SB RAS	lopatin@opee.hcei.tsc.ru
Kovalsky S.S.	Institute of High Current Electronics SB RAS	skov@sibmail.com

Всего: 8

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