Yazarlar
- Aşkin, A.(2)
- Ali, Atif Mossad(1)
- Alshehri, Ali M.(1)
- Aşkın, A.(1)
- Dal, M.(1)
- Kumar, Ashok(1)
- Mutuwong, C.(1)
- Nutaro, T.(1)
- Rashad, M.(1)
- Sayyed, M.I.(1)
- Singh, Mandeep(1)
Yayınlar
- MakaleYalnız künye2020Scopus SJRQ2Investigation of the radiation shielding capability of xPbO – (50 - x) BaO – 50 B 2O 3 glass system using Geant4, Fluka, WinXCOM and comparison of data with the experimental data
Aşkin, A.; Mutuwong, C.; Nutaro, T.; Dal, M.
In this study, mass attenuation coefficient (μm), transmission fractions (T), effective atomic numbers (Z eff) and half-value layer (HVL) of the xPbO –(50 - x) BaO –50 B 2O 3 (where x=10,20,30,40mol%) glass system have been determined from the Monte Carlo simulations carried out with Geant4 and Fluka simulation toolkits and WinXCOM database software. The calculated results were compared with the experimentally obtained μm values of the selected glass in order to validate the Geant4 model of HPGe detector and Fluka model of NaI(Tl) detectors. T, Z eff and HVL shielding parameters of the studied glass system indicate that increase of PbO content from 10 to 40% results in a better shielding behaviour thanks to the high atomic number of lead.
AtıfScopus12WoS8OpenAlex12
İncele - MakaleYalnız künye2020Scopus SJRQ2Evaluation of the gamma and neutron shielding properties of 64 TeO 2+ 15 ZnO + (20 - x) CdO + xBaO + 1 V 2O 5 glass system using Geant4 simulation and Phy-X database software
Aşkin, A.
In this study, fast neutron removal cross-section and γ-ray shielding capabilities in terms of mass attenuation coefficient (μm), transmission fractions (T), effective atomic numbers (Zeff), half-value layer (HVL) and exposure build-up factors (EBF) of the 64 TeO 2+ 15 ZnO + (20 - x) CdO + xBaO + 1 V 2O 5 (x= 0 , 5 , 10 , 15 , 20 mol%) glass system have been evaluated using Monte Carlo simulations carried out with Geant4 model of the high-purity germanium (HPGe) detector and Phy-X database software. The results of this study revealed that γ-ray shielding capability of the studied glass system increases with the increase of BaO content and decrease of CdO content in the chemical structure due to the high atomic number (Z) of Ba compared to Cd. The results also showed that increase of BaO fraction in the glass structure weakens the neutron shielding ability and by the use of low Z elements in the composites better shielding performance against neutrons can be obtained.
AtıfScopus7WoS6OpenAlex6İncele - MakaleYalnız künye2019Scopus SJRQ1Extensive study of newly developed highly dense transparent PbO-WO3-BaO-Na2O-B2O3 glasses for radiation shielding applications
Sayyed, M.I.; Aşkın, A.; Ali, Atif Mossad; Kumar, Ashok; Rashad, M.; Alshehri, Ali M.; Singh, Mandeep
Amorphous PbO – WO3 – BaO – Na2O – B2O3 glass system have fabricated using traditional melt quenching method. The XRD and FTIR spectra confirm the amorphous nature and the various structural properties of the glasses respectively. The various optical properties have been measured in the spectral range 400–4000 cm−1. Also, to understand the shielding ability of the fabricated glasses, we used the Geant4 model of a HPGe detector and WinXcom program to calculate the mass attenuation coefficient (MAC) at six energies between 356 and 2510 keV. In order to confirm the agreement between both methods, we used correlation theory and calculated the correlation coefficients (R2) for each sample. It is found that the R2 values are close to 1 for all samples. The MAC values at 356 keV for the prepared samples lies between 0.221 and 0.246 cm2/g. It is found that the usage of different concentration of PbO (from 50 to 70 mol%) affects the MAC values and thus the attenuation ability of the samples due to the heavier density of the PbO in comparison to B2O3. The effective atomic number results showed that Pb70B10 sample (contains 70 mol% of PbO) was higher than the other samples. Hence, Pb70B10 absorbs more photons than the rest of the prepared glasses.
AtıfScopus33OpenAlex33İncele