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Materials chemistry and physics v.211, 2018년, pp.9 - 16  

Photon shielding characterizations of bismuth modified borate –silicate–tellurite glasses using MCNPX Monte Carlo code

Ozan Tekin, Huseyin (Uskudar University, Vocational School of Health Services, Radiotherapy Department, Istanbul, 34672, Turkey ) ; Sayyed, M.I. (Physics Department, University of Tabuk, Tabuk, Saudi Arabia ) ; Manici, Tugba (Uskudar University, Medical Radiation Research Center (USMERA), Istanbul, 34672, Turkey ) ; Altunsoy, Elif Ebru (Uskudar University, Medical Radiation Research Center (USMERA), Istanbul, 34672, Turkey ) ;
  • 초록  

    Abstract In this study, the radiation mass attenuation coefficients of different bismuth-borate glass samples as shielding materials are calculated at 356, 662, 1173 and 1332 keV photon energies by using general purpose Monte Carlo code MCNPX (version 2.4.0). The obtained numerical results agreed well with previous experimental, theoretical results and with standard XCOM data. The validated simulation geometry has been used then to investigate the photon attenuation properties of B 2 O 3 –Bi 2 O 3 –SiO 2 –TeO 2 glass system. The photon shielding parameters such as mass attenuation coefficients, effective atomic number, and mean free path have been calculated and the variation in these parameters was discussed in terms of both photon energy and Bi 2 O 3 concentration. The maximum values of mass attenuation coefficients and effective atomic number were found for Bbi7 glass sample. The photon shielding properties for the B 2 O 3 –Bi 2 O 3 –SiO 2 –TeO 2 glasses have been compared in terms of half value layer with some commercially-available shielding glasses developed by SCHOTT company. Also, the mean free path for the present glasses have been compared with those of different glass samples and steel-magnetite concrete. The comparison reveals that the B 2 O 3 –Bi 2 O 3 –SiO 2 –TeO 2 glass system can be used for photon shielding applications. Highlights The addition of Bi 2 O 3 enhances the photon shielding performance of the present glass samples. The B 2 O 3 –Bi 2 O 3 –SiO 2 –TeO 2 glass system can be developed for photon shielding applications. Standard MCNPX geometry and given simulation details can be useful for scientific community.


  • 주제어

    MCNPX .   XCOM .   Glass .   Photon .   Attenuation.  

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