Role of GeO2 on enhancing the shielding properties of phosphate and borate-phosphate glasses

الكلية: محطات الطاقة النووية ومصادر الطاقة المتجددة 

الج هة البحثية: جامعة الأورال الفيدرالية - Ural Federal University 

عنوان البحث المنشور :   Role of GeO2 on enhancing the shielding properties of phosphate and borate-phosphate glasses

حقل البحث: العلوم الهندسية 

سنة النشر: 2023  

ملخص البحث المنشور: 

 In this work, the radiation shielding properties of 40Na₂O–(60–x)P₂O₅–xGeO₂ and 40Na₂O–10B₂O₃–(50–x)P₂O₅–xGeO₂ glass systems, x = 0–30 mol%, were investigated for use in radiation protection applications. As a result, the mass attenuation coefficient (MAC) for phosphate and borate phosphate glass samples was simulated using the MCNP5 code within photon energies of 0.02–20 MeV, and the simulated MAC values were compared to those obtained theoretically using the XCOM database. Based on the simulated µ_m, linear attenuation coefficient (LAC), half-value layer (HVL), mean free path (MFP) and effective atomic number (Z_eff) were determined. It was found that the µ_m decreased with the increase of photon energy and increased with the increase of (mol%) fraction of GeO₂. Because of its greater values of MAC, LAC, and lower values of HVL and MFP, the NaPGe-30 glass with a 30 mol% concentration of GeO₂ is shown to have improved gamma-ray shielding performance. The neutron shielding effectiveness of the phosphate and borate-phosphate chosen glasses was also tested in this study. Using the PhyX/ZeXTRa database, the effective removal cross-section (cm⁻¹) was computed. Finally, it was discovered that the NaBPGe-20 glass with a B₂O₃ concentration of 10 mol% and a P₂O₅ concentration of 30 mol% has better neutron shielding properties than the other glass samples, due to having the highest effective removal cross-section. 

 رابط البحث المنشور:  
https://link.springer.com/article/10.1007/s12034-022-02865-4