Effect of Bi3+ on the structural, optical and simulate γ-radiation shielding features of borate glasses doped nickel ions.

In this investigation, a wide range of photon energy (0.15–1.5 MeV) was employed for the simulation investigation of gamma radiation protection. To carry out this study, five recently created glass systems with nominal compositions of [19 Na 2 O + 1NiO + (80- x) B 2 O 3 + x Bi 2 O 3 ] (abbreviation BNN-B) glass systems where (x = 0, 5, 10, 15, and 20 mol. %) were created via traditional melting techniques. The shielding radiation parameters, such as mass attenuation coefficient (MAC), half value layer (HVL), mean free path (MFP), and effective atomic number (Z eff) were computed using the Phy-X/PSD program. The obtained results were interpreted based on the structural and optical properties of present compositions. The interesting obtained results indicated that the shielding parameters depended on the chemical composition and photon energy, where superior enhancement of shielding properties was observed by Bi 2 O 3 addition. The MAC increased from 2.45 to 66.84 cm 2 / g when the Bi 2 O 3 content changed from 0.0 to 20%. Moreover, the HVL decreased from 0.13 cm for free Bi 2 O 3 to 0.003 cm at 20% of Bi-content at 15 Kev due to enhanced the density value and structural properties. The MFP showed that the system with a higher content of Bi 2 O 3 had a lower value of MFP at the same energy photon. The values of MFP decreased from 0.188 to 0.004 cm when the Bi-concentration increased from 0.0 to 20 mol% at 15 Kev of photon energy. Finally, the effective atomic number (Z eff) showed that the maximum Z eff was observed at 15 Kev and varied between 10.18 and 74.24 cm from 0.0 to 20% of Bi 2 O 3. The addition of Bi 2 O 3 was found to enhance and improve the shielding properties and have a satisfactory radiation shielding property of borate glass systems. Superior shielding capacity against gamma rays was achieved at the BNN-20B glass matrix. • [19 Na 2 O +1NiO+(80-x) B 2 O 3 +x Bi 2 O 3 ](x = 0, 5, 10, 15 and 20 mol. %) glasses were prepared by the melt quenching technique. • Significant enhancement into density values of the prepared samples has been achieved by Bi-addition. • The band gab (E g) decreased by increasing of Bi3+ content resulting in enhancement the electrical conductivity. • The theoretical gamma radiation properties indicate superior radiation protection of the prepared materials doped Bi 2 O 3. [ABSTRACT FROM AUTHOR]