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Influence of modifiers on the physical, structural, elastic and radiation shielding competence of Dy3+ ions doped Alkali boro-tellurite glasses
Radiation Physics and Chemistry ( IF 2.8 ) Pub Date : 2021-08-11 , DOI: 10.1016/j.radphyschem.2021.109741
P. Evangelin Teresa 1 , K.A. Naseer 1 , K. Marimuthu 1 , Hoda Alavian 2 , M.I. Sayyed 3, 4
Affiliation  

Highly efficient gamma ray shielding glasses with chemical composition 39.5H3BO3–25TeO2−15MO−10Na2CO3–10K2CO3−0.5Dy2O3 (M = BaO, CaO, SrO, Li2O, ZnO) were synthesized by traditional melt-quenching technique. Physical, structural and elastic features of the glass systems were examined to prove the formation of bridging oxygens. The attributes such as optical basicity and ionic nature (Ic) clarifies that the glasses are inclined in the direction of ionicity rather than covalency. The γ-ray shielding parameters of the investigated glasses were calculated in an important range in radiation protection (0.015–15 MeV). At 0.02 and 0.03 MeV, the SrO containing glass (BTNKD-Sr) shows the highest μ/ρ values which is substituted by the BaO glass (BTNKD-Ba) thereafter. It signifies that BTNKD-Sr is the most effective material in shielding lower energy photons (up to 0.0374 MeV), while BTNKD-Ba indicates better shielding against photons in a wide energy region (0.0374–15 MeV). The half value layer (HVL) values of the prepared glasses range from 0.0163 cm for Li2O glass (BTNKD-Li) to 0.0073 cm for ZnO glass (BTNKD-Zn) at 0.015 MeV, while the corresponding values range from 9.62 cm (BTNKD-Li) to 6.68 cm (BTNKD-Zn) at 15 MeV. The effective atomic numbers (Zeff) of the glasses are rapidly decreased at 0.3 MeV.



中文翻译:

改性剂对Dy3+离子掺杂碱硼碲酸盐玻璃物理、结构、弹性和辐射屏蔽能力的影响

高效伽马射线屏蔽玻璃,化学成分为 39.5H 3 BO 3 –25TeO 2 -15MO-10Na 2 CO 3 –10K 2 CO 3 -0.5Dy 2 O 3 (M = BaO, CaO, SrO, Li 2 O, ZnO)由传统的熔体淬火技术合成。检查了玻璃系统的物理、结构和弹性特征,以证明桥接氧的形成。光学碱度和离子性质等属性(I c) 阐明玻璃倾向于离子性而不是共价性。在辐射防护的重要范围内(0.015-15 MeV)计算了所研究玻璃的γ射线屏蔽参数。在 0.02 和 0.03 MeV 时,含 SrO 的玻璃 (BTNKD-Sr) 显示出最高的 μ/ρ 值,此后被 BaO 玻璃 (BTNKD-Ba) 取代。这表明 BTNKD-Sr 是屏蔽较低能量光子(高达 0.0374 MeV)的最有效材料,而 BTNKD-Ba 表明对宽能量区域(0.0374-15 MeV)中的光子具有更好的屏蔽作用。制备的玻璃的半值层 (HVL) 值范围为 0.0163 cm,Li 2O 玻璃 (BTNKD-Li) 在 0.015 MeV 下为 ZnO 玻璃 (BTNKD-Zn) 的 0.0073 cm,而相应的值范围从 9.62 cm (BTNKD-Li) 到 6.68 cm (BTNKD-Zn) 在 15 MeV。玻璃的有效原子序数 (Z eff ) 在 0.3 MeV 时迅速降低。

更新日期:2021-08-12
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