Experimental study of pseudospark-produced electron beams

Conference · Fri Dec 01 04:00:00 EST 1989 · AIP Conference Proceedings (American Institute of Physics); (USA)

OSTI ID:6362106

Boggasch, E; Rhee, M J ^[1]

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1. Laboratory for Plasma Research, University of Maryland, College Park, MD (USA)

A brief review on the status of pseudospark research is given. A modular pseudospark chamber was built to investigate this new discharge type as a source of intense electron beams. Typical experimental parameters are a brakedown voltage of 25 kV and a discharge current of about 500 A, with an electron beam of {similar to}100 A and {similar to}10 ns FWHM emitted through the anode hole into a drift chamber. Electrical parameters of the circuit, including the plasma channel, were evaluated by monitoring the discharge current waveform. First results of emittance measurements of the electron beam are presented. Based on the measured rms emittance of {similar to}55 mm-mrad, a normalized brightness of about 2{times}10{sup 11} A/m{sup 2}-rad{sup 2} is estimated. This characterizes the pseudospark as a high brightness electron beam source.

• OSTI ID: 6362106
• Report Number(s): CONF-8904107--
• Conference Information: Journal Name: AIP Conference Proceedings (American Institute of Physics); (USA) Journal Volume: 195:1
• Country of Publication: United States
• Language: English

Related Subjects

640301* -- Atomic
Molecular & Chemical Physics-- Beams & their Reactions
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101 -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BEAM EMITTANCE
BEAM PRODUCTION
BEAMS
BREAKDOWN
CATHODES
DATA
ELECTRIC DISCHARGES
ELECTRIC SPARKS
ELECTRODES
ELECTRON BEAMS
ELECTRON SOURCES
EXPERIMENTAL DATA
INFORMATION
LEPTON BEAMS
NUMERICAL DATA
PARTICLE BEAMS
PARTICLE SOURCES
RADIATION SOURCES