Temperature distribution in a swift ion-induced spike: An experimental approach

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Tracks induced by swift heavy ions are analyzed in insulating crystals. An empirical Re(Tm) function is obtained (Tm - melting temperature; Re - track radius); other material parameters are missing from it. It is derived from the analysis of the Re(Tm) function that a universal Gaussian temperature distribution Tmax is formed at the moment when the melt diameter is maximal. The variance of Tmax is identical for all track forming insulators at any ion energy. The peak temperature of the radial distribution is Tp= se/3 k, where se is the electronic stopping power per atom, k is the Boltzmann constant and =L and =H are constants for irradiations with low (E2.2MeV/nucleon) and high (E8MeV/nucleon) velocity ions, respectively. The most important feature of the distribution Tmax is that it does not contain material parameters of the individual solids.

Original languageEnglish
Pages (from-to)557-565
Number of pages9
JournalRadiation Effects and Defects in Solids
Issue number7-8
Publication statusPublished - Jul 1 2007



  • Heavy ions
  • Temperature distribution
  • Thermal spike
  • Tracks

ASJC Scopus subject areas

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

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