Electron Micro-Bunch Generation from RF Photoinjectors
- Department of Physics, UCLA, Los Angeles, California 90024 (United States)
In this paper we discuss how the injector specifications of a 2nd-generation plasma beat wave accelerator (PBWA) experiment can be achieved by a photo-injector. Typical required bunch lengths (FWHM) are 50 microns with 15 pC bunch charge. We analyze the possibility of generating such short electron bunches directly from a photoinjector by illuminating a photocathode in an RF electron gun with a phase-locked 160-fs laser pulse. In particular, we address all de-bunching effects taking place during acceleration and transport through the photo-injector. We provide a set of analytical scaling laws, as well as a comparison with detailed simulations of the beam dynamics. The possible performances of the present SATURNUS linac setup are presented, as well as the anticipated capabilities of a multi-cell RF gun structure based on the PWT linac presently in operation at UCLA. {copyright} {ital 1996 American Institute of Physics.}
- DOE Contract Number:
- FG03-92ER40693
- OSTI ID:
- 288332
- Report Number(s):
- CONF-9509227-; ISSN 0094-243X; TRN: 96:024043
- Journal Information:
- AIP Conference Proceedings, Vol. 367, Issue 1; Conference: MicroBunches workshop, Upton, NY (United States), 28-30 Sep 1995; Other Information: PBD: Apr 1996
- Country of Publication:
- United States
- Language:
- English
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