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Study of the energy release region of a heavy-ion flux in nanomaterials by X-ray spectroscopy of multicharged ions

  • V. P. Efremov
  • S. A. PikuzJr.
  • A. Ya. Faenov
  • O. Rosmej
  • I. Yu. Skobelev
  • A. V. Shutov
  • D. H. H. Hoffmann
  • V. E. Fortov
Plasma, Gases

Abstract

X-ray spectroscopic data are reported on the state of a silicon aerogel medium (SiO2) irradiated by a Ni ion flux with an energy of 4.7 MeV/nucleon. Radiation from the electron transitions to the K shell in multicharged Si ions is detected with spatial resolution along the direction of the beam propagation in the medium. Calculations performed for the ionization state and population of the levels excited in the silicon atoms of the target provide the estimate Te = 70–120 eV for the medium electron temperature in the ion tack region. Two-dimensional hydrodynamic calculations provide the estimate Te = 60–116 eV for the same conditions and densities of 0.5–2.5 g/cm3 of the excited target medium.

PACS numbers

32.30.Rj 52.25.−b 52.50.Gj 52.65.−y 

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Copyright information

© Pleiades Publishing, Inc. 2005

Authors and Affiliations

  • V. P. Efremov
    • 1
  • S. A. PikuzJr.
    • 1
  • A. Ya. Faenov
    • 2
  • O. Rosmej
    • 3
  • I. Yu. Skobelev
    • 2
  • A. V. Shutov
    • 4
  • D. H. H. Hoffmann
    • 3
  • V. E. Fortov
    • 1
  1. 1.Joint Institute for High Temperatures ResearchRussian Academy of SciencesMoscowRussia
  2. 2.Multicharged Ion Spectra Data CenterNPO VNIIFTRIMendeleevo, Moscow regionRussia
  3. 3.Gesellschaft für SchwerionenfoschungDarmstadtGermany
  4. 4.Institute of Problems of Chemical PhysicsRussian Academy of SciencesChernogolovka, Moscow regionRussia

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