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Applied Physics B

, Volume 79, Issue 8, pp 1041–1045 | Cite as

Source-size measurements and charge distributions of ions accelerated from thin foils irradiated by high-intensity laser pulses

  • J. Schreiber
  • M. Kaluza
  • F. Grüner
  • U. Schramm
  • B.M. Hegelich
  • J. Cobble
  • M. Geissler
  • E. Brambrink
  • J. Fuchs
  • P. Audebert
  • D. Habs
  • K. Witte
Article

Abstract

We report on measurements of source sizes and charge state distributions of ions accelerated from thin foils irradiated by ultrashort (100–300 fs) high-intensity (1-6×1019 W/cm2) laser pulses. The source sizes of proton and carbon ion beams originating from hydrocarbon contaminants on the surfaces of 5 μm thick aluminum foils were investigated using the knife-edge method. For low-energy protons and low-carbon charge states, the source area was found to exceed the focal spot area by a factor of 104. For the determination of charge state distributions, sandwich targets consisting of a 25 μm thick tungsten layer, a 2-nm thin beryllium layer, and again a tungsten layer whose thickness was varied were used. These targets were resistively heated to remove the light surface contaminants. Peaked energy spectra of oxygen and argon ions corresponding to the equilibrium distribution after propagation through matter were observed.

Keywords

Charge State Source Size Charge State Distribution Double Exponential Distribution Tungsten Layer 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 2004

Authors and Affiliations

  • J. Schreiber
    • 1
    • 2
  • M. Kaluza
    • 1
  • F. Grüner
    • 2
  • U. Schramm
    • 2
  • B.M. Hegelich
    • 3
  • J. Cobble
    • 3
  • M. Geissler
    • 1
  • E. Brambrink
    • 4
  • J. Fuchs
    • 5
    • 6
  • P. Audebert
    • 5
  • D. Habs
    • 2
  • K. Witte
    • 1
  1. 1.MPI für QuantenoptikGarchingGermany
  2. 2.LMU MünchenGarchingGermany
  3. 3.Los Alamos Natl. LabLos AlamosUSA
  4. 4.TU DarmstadtDarmstadtGermany
  5. 5.Laboratoire pour l’Utilisation des Lasers IntensesUMR 7605 CNRS-CEA-École Polytechnique-Univ. Paris VIPalaiseauFrance
  6. 6.Physics DepartmentUniversity of NevadaRenoUSA

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