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Title: Observation of a very high electron current extraction mode in a hollow cathode discharge

Journal Article · · Journal of Applied Physics; (United States)
DOI:https://doi.org/10.1063/1.355239· OSTI ID:6523978
 [1]
  1. 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