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WOS:000460704700016 Glass systems of composition 16XO-3Al(2)O(3)-6CuO-20Na(2)O-55P(2)O(5) (where X = Sr, Ca, Mg and Ba mol%) have been investigated to check its potential utilize as gamma ray shielding material. Different shielding quantifies namely mass attenuation coefficient (mu/rho), effective atomic number (Z(eff)), half value layer (HVL) and mean free path (MFP) have been evaluated using MCNPX code and XCOM program at different photon energies between 0.015 and 10 MeV. The obtained data revealed good agreement between the mu/rho values derived from XCOM and MCNPX code (version 2.6.0). It is found that the mass attenuation coefficients of BaO-doped phosphate glass are higher than those of the other alkaline earth elements-doped glasses, whereas MgO possess the lowest values. This indicates that the BaO-doped phosphate glass is the superior gamma radiation attenuator among the studied glass samples. The gamma shielding performance of the glasses under study has been compared to some commercial glasses and different concrete samples in terms of MFP. Karamanoglu Mehmetbey UniversityKaramanoglu Mehmetbey University [13-M-17]; Universiti Putra Malaysia (UPM) under Inisiatif Putra Muda (IPM); Hashemite University This study was supported by Karamanoglu Mehmetbey University (Project Numbers: 13-M-17) and the financial support from Universiti Putra Malaysia (UPM) under Inisiatif Putra Muda (IPM) are gratefully acknowledged. The Hashemite University is also acknowledged for the generous support.