在本研究中,我们使用熔融淬火法制备了六个硼酸铋玻璃样品,其组成为(70-x)B2O3-10CaO-20Na2O-xBi2O3;x=0、3、6、9、12和15mol%。使用阿基米德原理确定所制备的玻璃的密度。X射线衍射图证实了所制备样品的无定形性质。而傅立叶变换红外测量指出,在玻璃网络中存在诸如BO3,BO4,BiO3和BiO6之类的结构单元。对光学吸收光谱的评估表明,随着氧化铋含量的增加,在直接和间接带隙能量中都观察到了下降。具体来说,它们从3.40eV降至2.79eV,从3.10eV降至2.46eV,分别。与伽马射线衰减有关的属性,包括质量衰减系数(μm),有效原子序数(Zeff)半值层(HVL)和平均自由程(MFP),对所有玻璃样品进行了检查。这项调查是使用Phy-X/PSD软件进行的,覆盖能量范围从0.511到1.332MeV。在所有样本中,Bi-15,具有最高的Bi2O3含量,显示出最高的μm,泽夫,最小的HVL和MFP。这些结果表明,具有15mol%Bi2O3的玻璃提供了最有效的γ辐射屏蔽性能。此外,与特定的混凝土类型相比,本研究中检查的眼镜表现出优异的辐射屏蔽特性,即,普通混凝土,赤铁矿蛇纹石混凝土和重晶石混凝土,以及商业眼镜,如RS-360和RS-253。
In the present study, we have prepared six glass samples of bismuth borate using the melt-quenching method with the composition (70-x)B2O3-10CaO-20Na2O-xBi2O3; x = 0, 3, 6, 9, 12 and 15 mol%. The density of the prepared glasses was determined using Archimedes principle. The X-ray diffraction patterns provide confirmation of the amorphous nature of the prepared samples, whereas the Fourier transform infrared measurements pointed to the existence of structural units like BO3, BO4, BiO3 and BiO6 within the glass network. An assessment of the optical absorption spectra unveiled that with the increase in the bismuth oxide content, there was a decrease observed in both the direct and indirect band gap energies. Specifically, they decreased from 3.40 to 2.79 eV and from 3.10 to 2.46 eV, respectively. The properties related to gamma ray attenuation, including the mass attenuation coefficient (μm), effective atomic number (Zeff), half-value layer (HVL) and mean free path (MFP), were examined for all the glass samples. This investigation was carried out using the Phy-X/PSD software, covering the energy range from 0.511 to 1.332 MeV. Out of all the samples, Bi-15, featuring the highest Bi2O3 content, demonstrated the highest μm, Zeff, the smallest HVL and MFP. These results suggest that the glass with 15 mol% of Bi2O3 offers the most effective gamma radiation shielding performance. Moreover, the glasses examined in this study exhibit superior radiation shielding characteristics compared with specific concrete types, namely, ordinary concrete, Hematite serpentine concrete and barite concrete, as well as commercial glasses such as RS-360 and RS-253.