Characterization of Quasi-Monoenergetic Electron Beams at the Lund Laser Centre

Lindau, Filip and Lundh, Olle and Mangles, Stuart P. D. and Kaluza, M. C. and Krushelnick, Karl and Najmudin, Zulfikar and Persson, A. and Thomas, Alexander George Roy and Wahlstrom, C.-G. (2008) Characterization of Quasi-Monoenergetic Electron Beams at the Lund Laser Centre. IEEE Transactions on Plasma Science, 36 (4). pp. 1707-1714. ISSN 0093-3813

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Experiments performed with the high-contrast 0.7-J 35-fs Ti:sapphire laser at the Lund Laser Centre focused into a helium gas jet have produced quasi-monoenergetic electron beams with energies up to 150 MeV. The beam is produced as a result of controlled wavebreaking of a wakefleld generated by the relativistically channeled laser beam. Under the best conditions of laser energy and plasma density, a beam with narrow-energy-spread component was produced on every shot with an energy stability of ~10% and a pointing stability of ~6 mrad. Furthermore, it can be deduced that the electron beam originates from a source with both transverse and longitudinal extents < 10 mum, implying a pulselength of < 25 fs. These measurements mark an important improvement in the characterization, as well as repeatability, of laser-plasma-generated electron beams with a single driver laser beam.

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Journal Article
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IEEE Transactions on Plasma Science
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04 Apr 2017 12:58
Last Modified:
20 Sep 2023 01:02