Effect of Nb2O5 inclusion on the radiation shielding efficiency of TeO2-ZnO-LiF-NaF glass system
Effect of Nb2O5 inclusion on the radiation shielding efficiency of TeO2-ZnO-LiF-NaF glass system
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DOI：
10.1016/j.radphyschem.2022.110127
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发表时间：
2022-04-12
影响因子：
2.9
通讯作者：
Al-Buriahi, M. S.
中科院分区：
文献类型：
--
作者：
Alharshan, Gharam A.;Alrowaili, Z. A.;Al-Buriahi, M. S.
本研究的目的是研究Nb2O5包合物对75TeO2 - 10ZnO - 5LiF - (10-x)Nb2O5 - xNaF（其中x = 10,6和2 mol %）玻璃（分别表示为TLFZNN1， TLFZNN2和TLFZNN3）的光学，光子吸收，快中子节制和热中子吸收特性的影响，随着x的增加。利用FLUKA模拟和XCOM计算估算了线性衰减系数（LAC）和相关参数。对估计屏蔽参数的分析表明，在光子能量相等的情况下，随着Nb2O5含量相对于NAF的增加，LAC增加。对于0.284 TLFZNN3， LAC变化范围为0.7892 - 0.1836,0.8238 - 0.1941,0.846 - 0.2015。这一趋势表明，玻璃的防辐射效率随着密度（rho(g)）和Nb2O5含量的增加而增加。TLFZNN1、TLFZNN2和tlfzn3的Z（eff）分别为21.27 ~ 27.85、21.18 ~ 27.59和21.20 ~ 27.42。还估计了玻璃的快中子去除截面Sigma(R)和总热中子截面st。随着Nb2O5含量的增加，玻璃中的σ (R)从0.0967增加到0.1057 cm（-1）。与标准屏蔽玻璃和混凝土相比，TLFZNN玻璃具有优异的屏蔽性能。
The objective of this study is to investigate the effect of Nb2O5 inclusion on the optical, photon absorption, fast neutron moderation, and thermal neutron absorption features of 75TeO2 - 10ZnO - 5LiF - (10-x)Nb2O5 - xNaF (where x = 10, 6, and 2 mol %) glasses that are denoted by TLFZNN1, TLFZNN2, and TLFZNN3, respectively, as x increases. The linear attenuation coefficients (LAC) and associated parameters were estimated by the use of FLUKA simulations and XCOM computations. Analysis of the estimated shielding parameters shows that, at equal photon energy, LAC increases as Nb2O5 content of the glasses increases relative to NAF. The LAC changed in the range of 0.7892 - 0.1836, 0.8238 - 0.1941, and 0.846 - 0.2015 for 0.284 TLFZNN3. This trend indicated that there is an increase in the radiation protection efficiency of the glasses as the density (rho(g)) and Nb2O5 content increases. Z(eff) varies between 21.27 and 27.85, 21.18 - 27.59, and 21.20 - 27.42 for TLFZNN1, TLFZNN2, and TLFZNN3 correspondingly. Fast neutron removal cross section Sigma(R) and total thermal neutron cross section st are also estimated for the glasses. Sigma(R) grew from 0.0967 to 0.1057 cm(-1) while st decays with Nb2O5 content increased in the glasses. Compared to standard shielding glasses and concrete, the TLFZNN glasses show outstanding shielding abilities.