Experimental investigation of a pseudospark-produced high-brightness electron beam

Journal Article · Mon Oct 01 04:00:00 EDT 1990 · Physics of Fluids B; (USA)

DOI:https://doi.org/10.1063/1.859513· OSTI ID:6515224

Jain, K K; Boggasch, E; Reiser, M; Rhee, M J ^[1]

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

A high-brightness electron beam produced by a six-gap pseudospark chamber operated in 5--25 kV voltage and 30--70 mTorr pressure ranges is experimentally investigated. The electron beam of current 150 A at an average energy of 20 keV and pulse duration of 10 nsec is extracted with a repetitive frequency of {similar to}10 Hz. The electron-beam current scales linearly with the breakdown voltage and about 20% of the stored energy is converted into the total beam energy. The time-integrated rms emittance of the electron beam is measured, and a typical value is found to be 65 mm mrad, yielding a normalized brightness of the beam {ital B}{sub {ital n}}{approx}2{times}10{sup 10} A/(m{sup 2} rad{sup 2}).

• OSTI ID: 6515224
• Journal Information: Physics of Fluids B; (USA), Journal Name: Physics of Fluids B; (USA) Vol. 2:10; ISSN 0899-8221; ISSN PFBPE
• 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 PRODUCTION
BEAMS
BREAKDOWN
BRIGHTNESS
CURRENTS
ELECTRON BEAMS
ENERGY RANGE
GAS TRACK DETECTORS
KEV RANGE
KEV RANGE 10-100
LEPTON BEAMS
MEASURING INSTRUMENTS
OPTICAL PROPERTIES
PARTICLE BEAMS
PHYSICAL PROPERTIES
PULSE RISE TIME
RADIATION DETECTORS
SCALING LAWS
SPARK CHAMBERS
TIMING PROPERTIES