High power, high brightness electron beam generation in a pulse-line driven pseudospark discharge

Journal Article · Mon Apr 12 04:00:00 EDT 1993 · Applied Physics Letters; (United States)

DOI:https://doi.org/10.1063/1.109591· OSTI ID:6705552

Destler, W W; Segalov, Z; Rodgers, J; Ramaswamy, K; Reiser, M ^[1]

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1. Electrical Engineering Department and Laboratory for Plasma Research, University of Maryland, College Park, Maryland 20742 (United States)

High brightness ([similar to]10[sup 10] A/m[sup 2] rad[sup 2]), high power density ([similar to]10[sup 10] W/cm[sup 2]) electron beams have been generated by the mating of a hollow-cathode discharge device operating in the pseudospark regime to the output of a high power pulse line accelerator. Very small diameter ([similar to]1 mm) electron beams with currents in the range 500--1000 A and energies in the range 150--300 keV have been generated with effective emittances estimated to be at or below 170 mm mrad. Such emittances are comparable to those achieved in conventional electron beam sources at current densities several orders of magnitude lower than those observed in these experiments.

• OSTI ID: 6705552
• Journal Information: Applied Physics Letters; (United States), Journal Name: Applied Physics Letters; (United States) Vol. 62:15; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

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661220* -- Particle Beam Production & Handling
71 CLASSICAL AND QUANTUM MECHANICS
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BEAM CURRENTS
BEAMS
CATHODES
CURRENT DENSITY
CURRENTS
DESIGN
ELECTRIC DISCHARGES
ELECTRODES
ELECTRON BEAMS
ELECTRON SOURCES
ENERGY RANGE
HOLLOW CATHODES
KEV RANGE
KEV RANGE 100-1000
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LEPTON BEAMS
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Targets-- (1992-)