Tomography of injection and acceleration of monoenergetic electrons in a laser-wakefield accelerator

C. T. Hsieh, C. M. Huang, C. L. Chang, Y. C. Ho, Y. S. Chen, J. Y. Lin, J. Wang, S. Y. Chen

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Abstract

A tomographic diagnosis method was developed to systematically resolve the injection and acceleration processes of a monoenergetic electron beam in a laser-wakefield accelerator. It was found that all the monoenergetic electrons are injected at the same location in the plasma column and accelerated from 5 to 55 MeV energy in 200μm distance. This is a direct measurement of the real acceleration gradient in a laser-wakefield accelerator, and the experimental data are consistent with the model of transverse wave breaking and beam loading for monoenergetic electron injection.

Original languageEnglish
Article number095001
JournalPhysical Review Letters
Volume96
Issue number9
DOIs
StatePublished - 2006

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