Simulation of density measurements in plasma wakefields using photon acceleration

Muhammad Firmansyah Kasim, Naren Ratan, Luke Ceurvorst, James Sadler, Philip N. Burrows, Raoul Trines, James Holloway, Matthew Wing, Robert Bingham, Peter Norreys

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2 Citations (Scopus)
15 Downloads (Pure)


One obstacle in plasma accelerator development is the limitation of techniques to diagnose and measure plasma wakefield parameters. In this paper, we present a novel concept for the density measurement of a plasma wakefield using photon acceleration, supported by extensive particle in cell simulations of a laser pulse that copropagates with a wakefield. The technique can provide the perturbed electron density profile in the laser's reference frame, averaged over the propagation length, to be accurate within 10%. We discuss the limitations that affect the measurement: small frequency changes, photon trapping, laser displacement, stimulated Raman scattering, and laser beam divergence. By considering these processes, one can determine the optimal parameters of the laser pulse and its propagation length. This new technique allows a characterization of the density perturbation within a plasma wakefield accelerator.

Original languageEnglish
Article number032801
Number of pages9
JournalPhysical Review Special Topics: Accelerators and Beams
Issue number3
Publication statusPublished - 17 Mar 2015


  • plasma accelerator
  • plasma wakefield acceleration
  • photon acceleration
  • Raman scattering
  • laser beam divergence
  • laser pulse

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    Kasim, M. F., Ratan, N., Ceurvorst, L., Sadler, J., Burrows, P. N., Trines, R., ... Norreys, P. (2015). Simulation of density measurements in plasma wakefields using photon acceleration. Physical Review Special Topics: Accelerators and Beams, 18(3), [032801].