Calculation of LAC and HVL values of newly developed barium-borotellurite glass containing different heavy metal oxides using Phy-X/PSD

This paper examined the radiation shielding characteristics as linear attenuation (LAC) and half-value layer (HVL) of barium-borotellurite glass (BBT), 20BaO-20B2O3-60TeO2, reinforced with 2.5 mol% of different heavy metal oxides (HMOs), X2O3 (X: Bi, Gd, La, Sm). For this purpose, five different glass systems (BBT: reference, BBTB: Bi2O3, BBTG: Gd2O3, BBTL: La2O3, and BBTS: Sm2O3) were explored by performing the newly developed Phy-X/PSD program for theoretical computations. The LAC and the HVL were found out in the photon energies of 0.015 to 15 MeV. Eventually, the findings were compared with some heavyweight concretes and commercial radiation shielding glasses to make a deeper sense. One can report that all HMOs addition contributed to increasing LAC while decreasing HVL thicknesses in our newly developed BBT system. In particular, the BBTB glass provided the best effectiveness in radiation shielding. Further, the BBTB glass system can compete with commercially available glasses, particularly, it could accomplish to overtake lead-oxide containing ones. This study revealed that BBT glasses with differing HMOs can effectively be used in radiation shielding applications.

Farklý aðýr metal oksitler içeren yeni geliþtirilen baryum-borotellurit camýnýn Phy-X/PSD programý kullanýlarak LAC ve HVL deðerlerinin hesaplanmasý

Bu çalýþma, %2.5 mol farklý aðýr metal oksitler (HMO'lar), X2O3 (X: Bi, Gd, La, Sm) ile güçlendirilmiþ baryum-borotellurit (BBT), 20BaO-20B2O3-60TeO2 camýnýn doðrusal zayýflatma katsayýsý (LAC) ve yarý-deðer katmaný (HVL) olarak radyasyon zýrhlama özelliklerini incelemiþtir. Bu amaçla, teorik hesaplamalar için yeni geliþtirilen Phy-X/PSD programý uygulanarak beþ farklý cam sistemi (BBT: referans, BBTB: Bi2O3, BBTG: Gd2O3, BBTL: La2O3 ve BBTS: Sm2O3) araþtýrýlmýþtýr. Doðrusal zayýflatma katsayýsý (LAC) ve yarý deðer katmaný (HVL) 0.015 ila 15 MeV foton enerjilerinde bulundu. Sonunda, bulgularý anlamlandýrmak için bazý aðýr betonlar ve ticari radyasyon koruyucu camlarla karþýlaþtýrýldý. Yeni geliþtirdiðimiz BBT sistemimizde HVL kalýnlýklarýný azaltýrken, tüm HMO'larýn ilavesinin LAC'nin artmasýna katkýda bulunduðu söylenebilir. Özellikle BBTB camý, radyasyondan korunmada en iyi etkinliði saðladý. Ayrýca BBTB cam sistemi, ticari olarak bulunan camlarla rekabet edebilir, ve hatta kurþun oksit içeren camlarý geçmeyi baþarabilir. Bu çalýþma, farklý HMO'lara sahip BBT camlarýnýn radyasyondan korunma uygulamalarýnda etkili bir þekilde kullanýlabileceðini ortaya koymuþtur.