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Effects of laser prepulse on proton generation

Publiceringsår: 2010
Språk: Engelska
Sidor: 794-802
Publikation/Tidskrift/Serie: Radiation Effects and Defects in Solids
Volym: 165
Nummer: 6-10
Dokumenttyp: Konferensbidrag
Förlag: Taylor & Francis Group


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 (approximate to 1019W/cm2, ps duration) of the thin foil target, and for low prepulse intensities, the proton beam is directed away from the ounperturbedo target normal. Observations are discussed in terms of target normal sheath acceleration, in combination with a laser-controllable shock locally deforming the target surface.



  • Physics and Astronomy
  • high-intensity lasers
  • fast electrons
  • proton beams
  • shock waves


4th International Workshop on Pulsed Plasma Laser Ablation (PPLA)
Messina, Italy
  • ISSN: 1042-0150

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