High-brightness pseudospark-produced electron beam

Journal Article · Mon Apr 30 04:00:00 EDT 1990 · Applied Physics Letters; (USA)

DOI:https://doi.org/10.1063/1.103087· OSTI ID:6903243

Boggasch, E; Rhee, M J ^[1]

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1. Laboratory for Plasma Research, University of Maryland, College Park, Maryland 20742 (USA)

The first time-integrated root mean square (rms) emittance measurement of a pseudospark-produced electron beam is presented. From a six-gap pseudospark chamber with argon working gas, {similar to}10 Hz repetitive pulsed electron beams of average energy {similar to}20 keV, peak current {similar to}50 A, and pulse duration {similar to}10 ns are extracted into a drift tube. A typical value of measured rms emittance is found to be {epsilon}{approx}55 mm mrad, yielding a normalized rms emittance of {epsilon}{sub {ital n}}{approx}15 mm mrad. The normalized brightness of the beam is then estimated to be {ital B}{sub {ital n}}{approx}4{times}10{sup 10} A/(m{sup 2} rad{sup 2} ).

• OSTI ID: 6903243
• Journal Information: Applied Physics Letters; (USA), Journal Name: Applied Physics Letters; (USA) Vol. 56:18; ISSN APPLA; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

640301* -- Atomic
Molecular & Chemical Physics-- Beams & their Reactions
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BEAM CURRENTS
BEAM EMITTANCE
BEAM EXTRACTION
BEAM LUMINOSITY
BEAMS
CURRENTS
ELECTRIC DISCHARGES
ELECTRIC SPARKS
ELECTRON BEAMS
ELECTRON SOURCES
FREE ELECTRON LASERS
LASERS
LEPTON BEAMS
OPERATION
PARTICLE BEAMS
PARTICLE SOURCES
RADIATION SOURCES
RELIABILITY