Enhancement of shielding ability using PbF2 in Fe-reinforced bismuth borate glasses
Enhancement of shielding ability using PbF2 in Fe-reinforced bismuth borate glasses
复制标题
在铁强化硼酸铋玻璃中使用 PbF2 增强屏蔽能力
DOI：
10.1007/s10854-021-06788-4
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发表时间：
2021
期刊：
影响因子：
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通讯作者：
M. Shareefuddin
中科院分区：
文献类型：
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作者：
K. C. Sekhar;B. Kavitha;N. Narsimlu;V. Sathe;M. A. Alothman;I. Olarinoye;M. Al‐Buriahi;M. Shareefuddin
采用熔融淬火法制备了化学结构为xPbF2− (99.5 −x)(Bi2O3+ B2O3) − 0.5Fe2O3(其中x从0到50以10为步长变化)的PFBBF-x玻璃。 PbF2 的浓度以 Bi2O3-B2O3 为代价以 10 mol% 的步长逐渐增加，其中 Bi2O3 和 B2O3 的浓度以 20:80 的比例降低。使用 XRD、紫外可见光、FTIR、拉曼和辐射屏蔽功能对制备的 PFBBF 玻璃进行了研究，以了解其在光学应用和作为屏蔽材料中的潜在用途。随着 PBF2 的过量，我们发现密度百分比增加到 38。此外，PFBBF 玻璃的光学带隙 E 最佳值从 2.826 eV (PFBBF-0) 上升到 3.090 eV (PFBBF-50)，而它们的 Urbach 能量 (ΔE) 小于 0.179 eV。此外，玻璃的折射率 (n) 值从 PFBBF-0 玻璃的 2.4456 降低到 PFBBF-50 玻璃的 2.3733。另一方面，利用蒙特卡罗方法来评估我们制备的PFBBF玻璃的辐射屏蔽性能。线性（和质量衰减（系数）分析表明，PFBBF-0–PFBBF-50 的有效原子序数值分别从 0.1 MeV 处的最大值 25.758 cm−1 (4.146 cm2/g) 衰减到 6 MeV 处的 0.160 cm−1 (0.036 cm2/g)，而有效原子序数值分别从 14.44 变化到 75.16。一般来说，电子、质子、α粒子和碳离子的总质量阻止本领和预计射程随趋势变化：PFBBF-0 > PFBBF-10 > PFBBF-20 > PFBBF-30 > PFBBF-40 > PFBBF-50发现PbF2浓度的增加对PbF2浓度有很大影响。所获得的屏蔽参数的详细分析突显了 PFBBF 玻璃相对于一些先前研究的玻璃和传统辐射屏蔽的优越屏蔽能力。
The PFBBF-xglasses with the chemical structurexPbF2− (99.5 −x)(Bi2O3+ B2O3) − 0.5Fe2O3(wherexchanges from 0 to 50 in the steps of 10) were prepared using melt quenching method. The concentration of PbF2is increased gradually in the steps of 10 mol% at the cost of Bi2O3–B2O3, where the Bi2O3and B2O3concentrations are reduced in 20:80 ratios. The prepared PFBBF glasses were investigated using XRD, UV–Visible, FTIR, Raman and Radiation shielding feature for their potential use in the optical applications and as shielding materials. With the excess of PBF2,we found an increase in percentage of the density to be 38.Moreover,the optical bandgapEoptvalues for the PFBBF glasses rose from 2.826 eV (PFBBF-0) to 3.090 eV (PFBBF-50) while their Urbach energy (∆E) were less than 0.179 eV. Furthermore, refractive index (n) values for the glasses reduced from 2.4456 for PFBBF-0 glass to 2.3733 for PFBBF-50 glass. On the other hand, the Monte Carlo method was utilized to estimate the radiation shielding performance of our prepared PFBBF glasses. Analysis of linear (and mass attenuation (coefficient showed thatdecay from their maximum values 25.758 cm−1(4.146 cm2/g) at 0.1 MeV to 0.160 cm−1(0.036 cm2/g) at 6 MeV while values of effective atomic number varies from 14.44 to 75.16 for PFBBF-0–PFBBF-50, respectively. Generally, total mass stopping power and projected range of electron, proton, α-particle, and carbon ion varied according to the trend: PFBBF-0 > PFBBF-10 > PFBBF-20 > PFBBF-30 > PFBBF-40 > PFBBF-50. The increase in the concentration of PbF2was found to have a strong influence on the slow/thermal, and fast neutron transmission and cross sections in the glasses. A breakdown of obtained shielding parameters highlighted the superior shielding ability of the PFBBF glasses as against some previously investigated glasses and conventional radiation shields.