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Characterization of quasi-monoenergetic electron beams at the lund laser centre

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Author

Summary, in English

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 wakefield 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 similar to 10% and a pointing stability of similar to 6 mrad. Furthermore, it can be deduced that the electron beam originates from a source with both transverse and longitudinal extents < 10 mu m, 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.

Publishing year

2008

Language

English

Pages

1707-1714

Publication/Series

IEEE Transactions on Plasma Science

Volume

36

Issue

4

Document type

Journal article

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Physical Sciences
  • Natural Sciences
  • Atom and Molecular Physics and Optics

Keywords

  • accelerator
  • plasma wave
  • high-intensity ultrashort pulse laser
  • laser wakefield (LWF)

Status

Published

ISBN/ISSN/Other

  • ISSN: 0093-3813