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Title: A 4-megavolt, 5-kiloampere pulsed-power high-brightness electron beam source

Conference ·

The REX machine at Los Alamos is being used to generate a 4-MW, 5-kA, 50-ns electron beam. The beam is produced by a planar velvet cathode, accelerated through a foilless anode aperture, and transported by an air core magnetic lens. Extensive measurements of the time-resolved (<1 ns) properties of the beam using a streak camera and high speed electronic diagnostics have been made. These parameters include beam current voltage, current density, and emittance for a single cathode/anode configuration. Results indicate beam brightness in excess of 10/sup 8/A/m/sup 2/-rad/sup 2/. Numerical simulations of the experiment have been performed with ISIS, a time-dependent PIC code, and are in good agreement with the measurements. This electron beam source is being considered as an injector to a linear induction accelerator and can be operated at higher voltages and currents as a stand-alone flash x-ray machine. 7 refs., 8 figs.

Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
6472994
Report Number(s):
LA-UR-89-960; CONF-890335-19; ON: DE89009271
Resource Relation:
Conference: 13. particle accelerator conference, Chicago, IL, USA, 20 Mar 1989; Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English