Extraction of a steady state electron beam from HCD (hollow cathode discharge) plasmas for EBIS (electron beam ion source) applications
Experiments to extract high brightness electron beams from hollow cathode discharge plasmas are now in progress. A unique feature of these plasmas, which in principle can facilitate the extraction of large current low emittance electron beams, is the existence of a relatively high energy electron population with a very narrow energy spread. This electron population was identified in a self-extraction experiment, which yielded a 35 eV, 600 mA electron beam with parallel energy spread of less than 0.5 eV. Preliminary, crude application of 2.5 kV extraction voltage yielded a steady state electron beam current of 1.2 A. The end result of this endeavor would be an Electron Beam Ion Source (EBIS) with an electron beam current of 6 A. 4 refs., 2 figs.
- Research Organization:
- Brookhaven National Lab., Upton, NY (USA)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 7159653
- Report Number(s):
- BNL-41378; CONF-880695-25; ON: DE88013788
- Resource Relation:
- Conference: 1. European particle accelerator conference, Rome, Italy, 7 Jun 1988; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Extraction of a steady state electron beam from HCD plasmas for EBIS applications
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Related Subjects
GENERAL PHYSICS
ELECTRON BEAMS
PRODUCTION
BEAM CURRENTS
BEAM EMITTANCE
ELECTRON SOURCES
HOLLOW CATHODES
BEAMS
CATHODES
CURRENTS
ELECTRODES
LEPTON BEAMS
PARTICLE BEAMS
PARTICLE SOURCES
RADIATION SOURCES
640301* - Atomic
Molecular & Chemical Physics- Beams & their Reactions