Melt quenched "SnO 2 (50−x)PbO:50V 2 O 5 " glass system containing x = 5, 10, 15 in molar ratio has been investigated. Effects of heating rate, glass transition, crystallization, melting temperature and infrared spectra of SnO 2 substituted PbO-V 2 O 5 glass system are reported. XRD results show that perfect vitrification has been achieved for all the glass samples after annealing at 150˚C. DSC results have indicated that eutectic composition of the lead metavanadate has been maintained for all the glass systems up to 15 mole% of substitution. IR spectra for a SnO 2 substitution of 5 mole% V=O stretching frequency occur at 966 cm −1 without appearance of any additional peak. But for 10 mole% and 15 mole% SnO 2 substituted samples, additional peaks appear at 1023 and 1005 cm −1 indicating the effect of SnO 2 in the vanadate crystalline matrix such that there is an elongation of V=O bond. Since the crystalline matrix is affected, we can expect similar effect in the glass matrix also.

Measurements of K-shell mass attenuation coefficients are reported for the first time in Arsenic oxide (As2O3). Experiments are performed using Arsenic Oxide extended range HPGe detector. To achieve measurements at many small and regular energy intervals, secondary X-ray emission technique using "Seventeen Scatters" is employed. The results are in agreement with the proposed theoretical estimates. No evidence could, however be gained in favor of microscopic theories such as RRS and EXAFS, insofar as there are no energy points within a range of 100eV on either side of the K-edge.