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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Extensive study of newly developed highly dense transparent PbO-WO3-BaO-Na2O-B2O3 glasses for radiation shielding applications
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Extensive study of newly developed highly dense transparent PbO-WO3-BaO-Na2O-B2O3 glasses for radiation shielding applications

机译：广泛研究新开发的高致密透明PBO-WO3-BAO-B2O-B2O3玻璃，用于辐射屏蔽应用

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摘要

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 (R-2) for each sample. It is found that the R-2 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 cm(2)/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.
机译：无定形PBO - WO3 - BAO-NA2O - B2O3玻璃系统采用传统熔体淬火法制造。 XRD和FTIR光谱分别确认了玻璃的无定性性质和各种结构性质。已经在400-4000cm（-1）的光谱范围内测量了各种光学性质。此外，为了了解制造玻璃的屏蔽能力，我们使用了HPGE检测器和Winxcom程序的Geant4模型，以在356和2510kev之间的六个能量下计算质量衰减系数（Mac）。为了确认两种方法之间的协议，我们使用相关理论并计算每个样本的相关系数（R-2）。发现R-2值接近所有样品的1。制备样品356keV的MAC值位于0.221和0.246cm（2）/ g之间。结果发现，不同浓度的PBO浓度（50至70摩尔％）影响MAC值，从而导致样品的衰减能力与B2O3相比，由于PBO的密度较重。有效原子序数结果表明，PB70B10样品（含有70摩尔％的PBO）高于其他样品。因此，PB70B10比制备的玻璃的其余部分吸收更多的光子。

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