Preparing the transparent Gadolinium Silicoborate glass for radiation shielding material

Abstract

Research on radiation shielding material is ongoing to overcome the problem of radiation effect. The gamma and x-ray have a high effect of radiation, and they are used in hospital and industry. It is necessary to pay attention for the reason of safety, especially for people who work in radiation area. The glass as shielding material has an advantage because of its transparent. Silicoborate glasses have a mechanical strength, that can be used as radiation shielding material (x-ray and gamma-ray), which are formed from a heavy-oxide materials. For preparation the glass in this study, we used the melt quenching method at 1200 °C with the base materials are SiO 2 , B 2 O 3 , Gd 2 O 3 and Alkali Oxide (Na 2 O, K 2 O, Li 2 O, Al 2 O 3 ). The samples of glass are characterized in terms of transparency, density, molar volume, mass attenuation coefficients and effective atomic number. The glass systems can be expressed by (45-x)B 2 O 3 :10SiO 2 :40Li 2 O:5Al 2 O 3 :xGd 2 O 3 where x = 0, 5, 10, 15, which were high transparency in the visible region. The transmission is almost 90 % for x = 10. The mass density, the molar volume, the mass attenuation coefficient, and the effective atomic number are increase with increasing the amount of Gd 2 O 3 in the silicoborate glasses.

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