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  • Küçük Resim
    Öğe
    Comparison of the decay-rate parameter of the luminescence signal generated by various laboratory radiation doses
    (Springer, 2005) Tanır, Güneş; Türköz, Mustafa Burak; Şencan, Emine; Bölükdemir, M. Hicabi; Tel, Eyüp; Okuducu, Şeref
    In this work the parameter a representing the decay-rate of luminescence signal was investigated for two different samples, for luminescence dating purpose. The procedures of preheating/measurement and dose/preheating/measurement were repeatedly used for the natural and beta-irradiated forms of the samples at different infrared-stimulation time. Experimental data has shown that the IRSL signal decays in a way, which depends on the beta-dose given to the samples. This behavior is different from that observed by DULLER1 who did not find such dose-dependence.
  • Küçük Resim
    Öğe
    Investigation of coulomb and pairing effects using new developed empirical formulas for proton-induced reaction cross sections
    (Maik Nauka/Interperiodica/Springer, 2010) Tel, Eyyüp; Aydın, E. Gamze; Aydın, Abdullah; Kaplan, Abdullah; Bölükdemir, Mustafa Hicabi; Okuducu, Şeref
    We have investigated Coulomb and pairing effects by using new empirical formulas including the new coefficients for (p, alpha) at 17.9 MeV, (p, np) at 22.3 MeV, and (p, n alpha) at 24.8 and 28.5 MeV energies. A new formula is obtained by adjusting Levkovskii's original asymmetry parameter formula and also Tel et al. formula for proton-induced reactions. The new coefficients by using least-squares fitting method for the reactions are determined. In addition, the findings of the present study are compared with the available experimental data.