Tunable Electron Multibunch Production in Plasma Wakefield Accelerators

Bernhard Hidding, O. Karger, G. Wittig, C. Aniculaesei, D. Jaroszynski, B.W.J. McNeil, L.T. Campbell, M.R. Islam, B. Ersfeld, Z.-M. Sheng, A. Deng, J.B. Rosenzweig, G. Andonian, A. Murokh, M.J. Hogan, D.L. Bruhwiler, E. Cormier

Research output: Working paper

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Abstract

Synchronized, independently tunable and focused μJ-class laser pulses are used to release multiple electron populations via photo-ionization inside an electron-beam driven plasma wave. By varying the laser foci in the laboratory frame and the position of the underdense photocathodes in the co-moving frame, the delays between the produced bunches and their energies are adjusted. The resulting multibunches have ultra-high quality and brightness, allowing for hitherto impossible bunch configurations such as spatially overlapping bunch populations with strictly separated energies, which opens up a new regime for light sources such as free-electron-lasers.
Original languageEnglish
Number of pages5
Publication statusPublished - 5 Mar 2014

Keywords

  • laser plasma acceleration
  • plasma physics
  • focused laser pulses

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