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

Författare:
Publiceringsår: 2008
Språk: Engelska
Sidor: 1707-1714
Publikation/Tidskrift/Serie: IEEE Transactions on Plasma Science
Volym: 36
Nummer: 4
Dokumenttyp: Artikel
Förlag: IEEE

Sammanfattning

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.

Disputation

Nyckelord

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

Övriga

Published
Yes
  • ISSN: 0093-3813

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