Enhanced stability of laser wakefield acceleration using dielectric capillary tubes

Martin Hansson, Lovisa Senje, Anders Persson, Olle Lundh, Claes-Göran Wahlström, F. G. Desforges, J. Ju, T. L. Audet, B. Cros, S. Dobosz Dufrenoy, P. Monot

Research output: Contribution to journalArticlepeer-review

Abstract

The stability of beams of laser wakefield accelerated electrons in dielectric capillary tubes is experimentally investigated. These beams are found to be more stable in charge and pointing than the corresponding beams of electrons accelerated in a gas jet. Electron beams with an average charge of 43 pC and a standard deviation of 14% are generated. The fluctuations in charge are partly correlated to fluctuations in laser pulse energy. The pointing scatter of the electron beams is measured to be as low as 0.8 mrad (rms). High laser beam pointing stability improved the stability of the electron beams.
Original languageEnglish
Article number031303
JournalPhysical Review Special Topics. Accelerators and Beams
Volume17
Issue number3
DOIs
Publication statusPublished - 2014

Subject classification (UKÄ)

  • Atom and Molecular Physics and Optics

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