Current Filamentation Instability in Laser Wakefield Accelerators

Huntington, C. M. and Thomas, A. G. R. and McGuffey, C. and Matsuoka, T. and Chvykov, V. and Kalintchenko, G. and Kneip, S. and Najmudin, Z. and Palmer, C. and Yanovsky, V. and Maksimchuk, A. and Drake, R. P. and Katsouleas, T. and Krushelnick, K. (2011) Current Filamentation Instability in Laser Wakefield Accelerators. Physical review letters, 106 (10). ISSN 0031-9007

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Experiments using an electron beam produced by laser-wakefield acceleration have shown that varying the overall beam-plasma interaction length results in current filamentation at lengths that exceed the laser depletion length in the plasma. Three-dimensional simulations show this to be a combination of hosing, beam erosion, and filamentation of the decelerated beam. This work suggests the ability to perform scaled experiments of astrophysical instabilities. Additionally, understanding the processes involved with electron beam propagation is essential to the development of wakefield accelerator applications.

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Journal Article
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Physical review letters
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08 Nov 2016 10:18
Last Modified:
22 Nov 2022 03:59