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Theoretical work has been carried out to study the transverse emittance growth in a thermionic gridded electron gun. The potential distribution in the cathode-grid and grid-anode region and the beam emittance growth produced the grid are calculated. The results indicate that emittance growth due to the grid mesh located in front of the cathode is the dominant source compared to other emittance sources...
Characterization of beam energy spread in a space-charge dominated beam is very important to understand the physics of intense beams. It is believed that coupling between transverse and longitudinal direction via Coulomb collisions will cause an increase of the beam longitudinal energy spread. At the University of Maryland, experiments have been carried out to study the energy evolution in such intense...
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