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P2O5 Katkılı Lityum Alüminyum Silikat (LAS) Cam Sistemlerinin Nükleer Radyasyon Zırhlamasına Etkisi

2019; European Journal of Science and Technology; Linguagem: Inglês

10.31590/ejosat.638450

2148-2683

Gülfem Süsoy Doğan,

Radiation Dose and Imaging

In this work, shielding parameters of LAS (lithium-aluminum-silicate) Li 2 O-Al 2 O 3 -SiO 2 glass samples have been reported with the help of the WinXCom code, a Windows version of the XCOM database. The effect of increasing P 2 O 5 concentration on the shielding parameters has been examined in the used Li 2 O-Al 2 O 3 -SiO 2 glass samples. The shielding effectuality of the materials for gamma-ray can be interpreted with the help of several different attenuation parameters which plays key role in understanding the shielding capabilities of the material. The mass attenuation coefficient, defined by µ m =μ/ρ, is the most basic coefficient used to calculate the shielding parameters. These parameters are the mean free path (MFP), half value layer (HVL), tenth value layer (TVL), effective electron number (N e ) and equivalent atomic number (Z eq ). The exposure buildup factor (EBF) and GP fitting parameters are also calculated by the method of logarithmic interpolation using Z eq of a Li 2 O-Al 2 O 3 -SiO 2 glass system. The EBF values for Li 2 O-Al 2 O 3 -SiO 2 glass samples show an inverse relation with N e . Further, P1 (least N e ) offers maximum values of EBF and P6 (highest N e ) offers minimum EBF values. The change in different shielding parameters for the selected glasses was interpreted by considering three interactions with the substance (Photoelectric effect, Compton scattering and pair production). The obtained results show that the µ m strongly depends on the photon energy, chemical composition and density of the shielding materials. I t is clear to see that P6 glass sample having the highest P 2 O 5 concentration is the most effective glass sample among the other glasses of Li 2 O-Al 2 O 3 -SiO 2 system in nuclear radiation shielding ability.