Electron transport properties of stationary plasma clouds generated with hollow cathode discharges

Author

Conde, Luis ; León, Luis ; Ibáñez, Luis

Author_Institution

Dept. de Fisica Aplicada, Univ. Politecnica de Madrid, Spain

Volume

25

Issue

4

fYear

1997

fDate

8/1/1997 12:00:00 AM

Firstpage

548

Lastpage

552

Abstract

The electron transport properties of plasma clouds generated by a hollow cathode discharge are investigated. The voltage-current characteristic curves indicate that the electron-emitted electron current depends on both bias voltage and discharge current. The spatial dependence of the electronic density, plasma potential, and electronic temperature is measured. The energy loss rate of a high energy group of electrons with the radial distance is also presented. These experimental results are compared with a nonisothermal transport model which reproduces the spatial dependence of plasma properties

Keywords

glow discharges; plasma density; plasma temperature; plasma transport processes; bias voltage; discharge current; electron transport properties; electron-emitted electron current; electronic density; electronic temperature; energy loss rate; high energy electron group; hollow cathode discharges; nonisothermal transport model; plasma potential; plasma properties; spatial dependence; stationary plasma clouds; voltage-current characteristic curves; Cathodes; Clouds; Electrons; Plasma density; Plasma measurements; Plasma properties; Plasma temperature; Plasma transport processes; Temperature measurement; Voltage;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.640664

Filename

640664