Vol.
XXXI, No. 4, Pp. 307392
December 2016
UDC 621.039+614.876:504.06
ISSN 14513994
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Pages: 327334
Authors: Mehmet Buyukyildiz and Murat Kurudirek
Abstract
The effective atomic number (Z_{eff}) of Si_{X}Pb_{0.7x}(Fe_{2}O_{3})_{0.3} ternary alloys was obtained for photons. Rayleigh to Compton scattering ratio (R/C) has been determined to obtain the Z_{eff} of Si_{X}Pb_{0.7x}(Fe_{2}O_{3})_{0.3} ternary alloys of varying Si and Pb (10 %60 %) content for scattering of 59.54 keV grays at an angle of 130°. The theoretical R/C ratios of elements were plotted as a function of the atomic number and fitted to a polynomial equation. Experimental R/C values of alloys were then used to obtain Z_{eff} using this fit equation. Also, Z_{eff} values of these alloys were determined for the first time by interpolating the R/C of the material using the R/C data of adjacent elements in between the R/C of the alloy lies. The agreement between the interpolation method and the fit equation was quite satisfactory. The obtained Z_{eff} for photon scattering were then compared to the Z_{eff} for total photon attenuation obtained using the AutoZ_{eff} program. Significant variations were observed between the Z_{eff} for scattering and the total attenuation of gamma rays.
Key words:
effective atomic number, ternary alloy, scattering, charged particle
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