Generation of a highly collimated, mono-energetic electron beam from laser-driven plasma-based acceleration

Details Generation of a highly collimated, mono-energetic electron beam from laser-driven plasma-based acceleration Generation of a highly collimated, mono-energetic electron beam from laser-driven plasma-based acceleration

Apr 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010njph...12d5011r&link_type=abstract

New Journal of Physics, Volume 12, Issue 4, pp. 045011 (2010).

Physics

2

Scientific paper

An electron acceleration experiment in a self-modulated laser wake-field acceleration regime was carried out using a 45 fs duration Ti:sapphire laser focused to an intensity of 1.8×1018 W cm-2 on helium gas-jet plasma. A highly collimated and mono-energetic electron beam was observed at a plasma electron density of ~8.5×1019 cm-3. The electron beam was produced with a minimum full cone divergence angle of 4 mrad, an energy spread of ±4% and a peak energy up to 21 MeV. The experimental results were explained on the basis of self-modulation of the laser beam and acceleration in the bubble regime.

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