Controlled electron acceleration in the bubble regime by optimizing plasma density

Details Controlled electron acceleration in the bubble regime by optimizing plasma density Controlled electron acceleration in the bubble regime by optimizing plasma density

Apr 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010njph...12d5010w&link_type=abstract

New Journal of Physics, Volume 12, Issue 4, pp. 045010 (2010).

Physics

4

Scientific paper

Improvement of the quality of the monoenergetic electron bunch generated in the laser wakefield is investigated. The electrostatic field is more intense near the back of the bubble than at other locations in the bubble. By optimizing the density gradient of background plasma, the local dephasing problem can theoretically be overcome and the electron bunch can be stably accelerated at the back of the bubble so that the accelerated electrons experience nearly the same electric field. Three-dimensional simulations were performed. Compared with the standard wakefield acceleration schemes, a better-quality electron bunch, with narrower energy spread and higher energy, is obtained with a shorter acceleration distance.

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