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Proceedings of the 2005 Particle Accelerator Conference
New short-wavelength SASE light sources will require very bright electron beams, brighter in some cases than is now possible. One method for improving brightness involves the careful shaping of the electron bunch to control the degrading effects of its space charge forces. We study this experimentally in an S-band system, by using an acousto-optical programmable dispersive filter to shape the photocathode laser pulse that drives the RF photoinjector. We report on the efficacy of shaping fromdoi:10.1109/pac.2005.1590513 fatcat:ulfnyytgdngtnhjqxmg24uzhoq