Observation of a very high electron current extraction mode in a hollow cathode discharge
Journal Article
·
· Journal of Applied Physics; (United States)
- AGS Department, Brookhaven National Laboratory, Associated Universities Inc., Upton, New York 11973 (United States)
Earlier results by Hershcovitch, Kovarik, and Prelec in J. Appl. Phys. [bold 67], 671 (1990) proved that, in a low-pressure operating mode, hollow cathode discharges can have a two-component electron population, one of which is that of fast'' electrons having an energy corresponding to the cathode potential and a thermal spread of about 0.13 eV, which could form a basis for an excellent electron gun. Investigations of extracted electron currents in this low pressure mode indicate the existence of a narrow pressure range characterized by very high electron current extraction.
- OSTI ID:
- 6523978
- Journal Information:
- Journal of Applied Physics; (United States), Vol. 74:1; ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
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