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Process of compensation of the space charge of a negative ion beam in a gas

Journal Article · · Plasma Physics Reports
; ;  [1]
  1. National Science Academy of Ukraine, Institute of Physics (Ukraine)
The process of compensation of the space charge of a negative ion beam propagating through a neutral gas is investigated numerically. A comparison of the results obtained with experimental data unambiguously proves that, at high gas pressures, when the beam space charge is overcompensated, the electric field within the beam is determined by Coulomb collisions of the beam ions with plasma electrons. At low pressures, when the space charge is undercompensated, the field within the beam is determined by the dynamic processes related to oscillations of the beam current.
OSTI ID:
21100112
Journal Information:
Plasma Physics Reports, Journal Name: Plasma Physics Reports Journal Issue: 12 Vol. 33; ISSN PPHREM; ISSN 1063-780X
Country of Publication:
United States
Language:
English

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