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RISS 인기검색어
- 검색키워드
- 저자 : Alajerami, Y.S.M. (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
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Mhareb, M.H.A.,Alajerami, Y.S.M.,Dwaikat, Nidal,Al-Buriahi, M.S.,Alqahtani, Muna,Alshahri, Fatimh,Saleh, Noha,Alonizan, N.,Saleh, M.A.,Sayyed, M.I. Korean Nuclear Society 2021 Nuclear Engineering and Technology Vol.53 No.3
The current study aims to explore the shielding properties of multi-component borate-based glass series. Seven glass-samples with composition of (80-y)H<sub>3</sub>BO<sub>3</sub>-10ZnO-10Na<sub>2</sub>O-yBaO where (y = 0, 5, 10, 15, 20, 25 and 30 mol.%) were synthesized by melt-quench method. Various shielding features for photons, neutrons, and protons were determined for all prepared samples. XCOM, Phy-X program, and SRIM code were performed to determine and explain several shielding properties such as equivalent atomic number, exposure build-up factor, specific gamma-ray constants, effective removal cross-section (Σ<sub>R</sub>), neutron scattering and absorption, Mass Stopping Power (MSP) and projected range. The energy ranges for photons and protons were 0.015-15 MeV and 0.01-10 MeV, respectively. The mass attenuation coefficient (μ/ρ) was also determined experimentally by utilizing two radioactive sources (<sup>166</sup>Ho and <sup>137</sup>Cs). Consistent results were obtained between experimental and XCOM values in determining μ/ρ of the new glasses. The addition of BaO to the glass matrix led to enhance the μ/ρ and specific gamma-ray constants of glasses. Whereas the remarkable reductions in Σ<sub>R</sub>, MSP, and projected range values were reported with increasing BaO concentrations. The acquired results nominate the use of these glasses in different radiation shielding purposes.
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Aboalatta, A.,Asad, J.,Humaid, M.,Musleh, H.,Shaat, S.K.K.,Ramadan, Kh,Sayyed, M.I.,Alajerami, Y.,Aldahoudi, N. Korean Nuclear Society 2021 Nuclear Engineering and Technology Vol.53 No.9
Sodium zinc borate glasses doped with dysprosium and modified with different concentrations of barium oxide (0-50 mol %) were fabricated using the melting quenching technique. The structural properties of the prepared glass systems were characterized using XRD and FTIR methods. The absorption spectra of the prepared glasses were measured to determine their energy gap and their related optical properties. The density of the glasses and other physical parameters were also reported. Additionally, with the help of Photon Shielding and Dosimetry (PSD) software, we investigated the radiation shielding parameters of the prepared glass systems at different energy values. It was found that an increase in the density of the glasses by increasing the concentration of BaO significantly improved the gamma ray shielding ability of the samples. For practical results, a compatible irradiation set up was designed to check the shielding capability of the obtained glasses using a gamma ray source at 662 keV. The experimentally obtained results strongly agreed with the data obtained by PDS software at the same energy. These results demonstrated that the investigated glass system is a good candidate for several radiation shielding applications when comparing it with other commercial shielding glasses and concretes.
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