Počet záznamů: 1  

Effect of ion velocity on creation of point defects halos of latent tracks in LiF

  1. 1.
    0482980 - FZÚ 2018 RIV NL eng J - Článek v odborném periodiku
    Volkov, A.E. - Schwartz, K. - Medvedev, Nikita - Trautmann, C.
    Effect of ion velocity on creation of point defects halos of latent tracks in LiF.
    Nuclear Instruments & Methods in Physics Research Section B. Roč. 407, Sep (2017), s. 80-85. ISSN 0168-583X. E-ISSN 1872-9584
    Grant CEP: GA MŠMT LG15013; GA MŠMT(CZ) LM2015083
    Institucionální podpora: RVO:68378271
    Klíčová slova: swift heavy ion * electronic stopping * track * LiF * color centers * defect halo
    Obor OECD: Fluids and plasma physics (including surface physics)
    Impakt faktor: 1.323, rok: 2017

    Parameters of point defects halos (F-color centers) created due to decays of self-trapped valence holes generated in nanometric vicinities of trajectories of gold ions of 275 MeV and 2187 MeV in LiF are estimated in absorption spectroscopy experiments. Simulations with Monte-Carlo code TREKIS show no significant difference in the initial spatial distributions of these valence holes by the times of finishing of ionization cascades within the radii of the defect halos deduced from the experiments. Using these distributions as initial conditions and taking into account the difference between the defect halo radii, the diffusion coefficients of these holes near the trajectories of 275 and 2187 MeV Au ions in LiF are estimated showing about six times larger value in tracks of the faster ion for irradiations at room temperatures.

    Trvalý link: http://hdl.handle.net/11104/0278390

     
     
Počet záznamů: 1  

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