Simulating the effects of timing and energy stability in a laser Wakefield accelerator with external injection

W. Dijk, van, J.M. Corstens, S.B. Geer, van der, X.F.D. Stragier, G.J.H. Brussaard

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Abstract

One of the most compelling reasons to use external injection of electrons into a laser wakefield accelerator is to improve the stability and reproducibility of the accelerated electrons. We have built a simulation tool based on particle tracking to investigate the expected output parameters. Specifically, we are simulating the variations in energy and bunch charge under the influence of variations in laser power and timing jitter. In these simulations a a0 = 0.32 to a0 = 1.02 laser pulse with 10% shot-to-shot energy fluctuation is focused into a plasma waveguide with a density of 1.0 × 1024 m-3 and a calculated matched spot size of 50.2 µm. The timing of the injected electron bunch with respect to the laser pulse is varied from up to 1 ps from the standard timing (1 ps ahead or behind the laser pulse, depending on the regime). The simulation method and first results will be presented. Shortcomings and possible extensions to the model will be discussed. © 2009 American Institute of Physics.
Original languageEnglish
Title of host publicationProceedings of the Thirteenth Advanced Accelerator Concepts Workshop, January 22th 2009
Place of PublicationNew York
PublisherAmerican Institute of Physics
Pages221-228
DOIs
Publication statusPublished - 2008
Event13th Advanced Accelerator Concepts Workshop (AAC 2008), July 27-August 2, 2008, Santa Cruz, CA, USA - Santa Cruz, CA, United States
Duration: 27 Jul 20082 Aug 2008

Publication series

NameAIP Conference Proceedings
Volume1086
ISSN (Print)0094-243X

Workshop

Workshop13th Advanced Accelerator Concepts Workshop (AAC 2008), July 27-August 2, 2008, Santa Cruz, CA, USA
Abbreviated titleAAC 2008
CountryUnited States
CitySanta Cruz, CA
Period27/07/082/08/08

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