Browsing by Author "Boztosun I."

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    Preliminary results of Sr/Ca ratio study of teeth samples by photoactivation analysis
    (EDP Sciences, 2016) Kavun Y.; Boztosun I.; Maraş I.; Dapo H.; Segebade C.
    In this paper, we have performed Photoactivation Analysis (PAA), a non-destructive method, which is used to determine elemental concentration of any sample. This paper presents the first use of this method in medical sciences in Turkey. The method was applied to the determination of Sr/Ca ratios in teeth. The collected teeth samples and standards (SrO and CaCO3) have been irradiated for a fixed time interval with high energy photons. The photons were generated by a clinical linear accelerator (cLINAC). The photon end-point energy was 18 MeV. The energy and the time interval were sufficient to achieve good activation. Afterward, the samples and standards have been analysed with gamma spectroscopic analysis by using an HPGe detector system. By analysing many samples, a database of Sr/Ca ratios will be created at Nuclear Research and Application Center (NUBA). In this paper we present a small subset of the already analysed data as an example of our capabilities and goal. We hope to set an example for future studies. © The Authors, published by EDP Sciences.
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    A new proton spectra for nat Cu(p,xp) reaction at E p= 7 and 30 MeV
    (Springer Science and Business Media Deutschland GmbH, 2022) Kucuk Y.; Zholdybayev T.K.; Canbula B.; Mukan Z.; Sadykov B.M.; Nassurlla M.; Ismailov K.M.; Yücel M.B.; Boztosun I.
    In this paper, we present a new measurement of the inclusive cross section (p,xp) reactions on natCu at incident energies of E p= 7 and 30 MeV. The (p,xp) reaction at E p= 7 MeV on natCu is measured for the first time and (p,xp) and (p,x α) inclusive cross section for the same target at E p= 30 MeV is re-measured in order to improve the quality of the previous experimental data. For both energies, the mechanism of the pre-equilibrium reactions as well as the level of energy dependence are discussed and the adequacy of the theoretical models in explaining the newly measured experimental data is also assessed by comparing the experimental data with the results of the Hauser-Feshbach and Exciton models. We use the microscopic approach based on nucleon–nucleon interaction to produce the complex nuclear potential. © 2022, The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature.