Analysis of Capillary Guided Laser Plasma Accelerator Experiments at LBNL

Nakamura, K.; Gonsalves, A. J.; Panasenko, D.; Lin, C.; Tóth, Cs.; Geddes, C. G. R.; Schroeder, C. B.; Esarey, E.; Leemans, W. P.
January 2009
AIP Conference Proceedings;1/22/2008, Vol. 1086 Issue 1, p147
Conference Proceeding
Laser wakefield acceleration experiments were carried out by using a hydrogen-filled capillary discharge waveguide. For a 15 mm long, 200 μm diameter capillary, quasi-monoenergetic e-beams up to 300 MeV were observed. By de-tuning discharge delay from optimum guiding performance, self-trapping was found to be stabilized. For a 33 mm long, 300 μm capillary, a parameter regime with high energy electron beams, up to 1 GeV, was found. In this regime, the electron beam peak energy was correlated with the amount of trapped electrons.


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