Effects of laser prepulse on proton generation

D. Batani, R. Jafer, R. Redaelli, R. Dezulian, O. Lundh, F. Lindau, A. Persson, K. Osvay, C. G. Wahlstrom, D. C. Carroll, P. McKenna

Research output: Contribution to journalArticle


Prepulse is a major issue for laser generation of protons, often limiting the performances of laser sources. Here, we show the use of prepulse (<1013W/cm2, ns duration) to actively manipulate the proton beam direction. Under oblique high-intensity irradiation (≈10 19W/cm2, ps duration) of the thin foil target, and for low prepulse intensities, the proton beam is directed away from the unperturbed target normal. Observations are discussed in terms of target normal sheath acceleration, in combination with a laser-controllable shock locally deforming the target surface.

Original languageEnglish
Pages (from-to)794-802
Number of pages9
JournalRadiation Effects and Defects in Solids
Issue number6-10
Publication statusPublished - Jun 1 2010


  • Fast electrons
  • High-intensity lasers
  • Proton beams
  • Shock waves

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Materials Science(all)
  • Condensed Matter Physics

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    Batani, D., Jafer, R., Redaelli, R., Dezulian, R., Lundh, O., Lindau, F., Persson, A., Osvay, K., Wahlstrom, C. G., Carroll, D. C., & McKenna, P. (2010). Effects of laser prepulse on proton generation. Radiation Effects and Defects in Solids, 165(6-10), 794-802. https://doi.org/10.1080/10420151003732064