Abstract:
The effects of AgO addition on the mechanical, optical, and radiation attenuation parameters of 46V(2)O(5)-46P(2)O(5)-xB(2)O(3)-yAgO glass system, namely VP-BxAy: (x,y)=(8,0), (6,2), (4,4), (2,6), and (0,8) mol%, was examined. Values of molar polarizability (alpha (m), 19.397x10(-24) to 18.820x10(-24) cm(3)) were in direct relation with the molar refractivity (R-m, 48.882-47.427 cm(3)/mol), while the optical transmission (T) parameter showed an inverse relation with reflection loss (R-L) as a function of AgO concentrations. Both static (epsilon (static)) and optical (epsilon (optical)) dielectric factors showed a direct relation with each other and an opposite trend with the other factors. The values of the bulk modulus (KB-C) were increased from 59.99 to 64.67 GPa. The shear modulus (G(B-C)) was increased from 32.91 to 36.37 GPa, longitudinal modulus (LB-C) was increased from 103.77 to 103.05 GPa, and Young's modulus (EB-C) was increased from 83.48 to 91.89 GPa, respectively. The results of Poisson's ratio (sigma (C-B)) have a decreasing trend from 0.268 to 0.263. Moreover, the radiation attenuation properties of VP-BxAy glasses for photons, neutrons (fast and thermal), and charged particles (electron, proton, and alpha) are investigated. The Monte Carlo method was employed via FLUKA code to investigate photons attenuation properties of the examined glasses. The simulation implementation was experimentally and theoretically confirmed. Linear attenuation coefficients (LAC) of VP-BxAy glasses followed the trend: (LAC)(VP-B0A8)>(LAC)(VP-B2A6)>(LAC)(VP-B4A4) (LAC)(VP-B6A2)>(LAC)(VP-B8A0). Therefore, AgO addition played an improvement role in the photon attenuation processes. The VP-BxAy glasses showed superior attenuation properties for photons beam compared with different photon attenuators. This indicates that the VP-BxAy glasses have superior features to use as promising shields for various applications against photons beam (X or gamma radiation).
