$Al2O3$ ve $Al2O3.TiO2$ Bileşiklerinin Gama Zayıflama Katsayıları Üzerine Bir Çalışma

Bu çalışmada parçacık boyutları mikrometre ve nanometre düzeyinde olan toz halindeki Al2O3 ve Al2O3.TiO2 bileşikleri, soğuk hidrolik pres metodu kullanılarak deneye hazırlandı ve 661.7, 1173.2 ve 1332.5 keV foton enerjileri dikkate alınarak gama-radyasyonuna karşı zırhlama özellikleri incelendi. Örnekler için sayım işlemi 3×3 NaI (Tl) dedektörü ve 13384-kanalı olan çok kanallı gamaradyasyonu spektrometresi kullanılarak gerçekleştirildi. Elde edilen sonuçlardan, malzemelere $TiO2$ katkısının, malzemelerin gama zırhlama özelliklerini arttırmakta olduğu ve bu bulguya ilaveten malzemelerin parçacık boyutlarının da zırhlama özelliklerini etkilemekte olduğu anlaşıldı. Elde edilen sonuçlar kendi aralarında ve de literatürdeki mevcut benzer çalışmaların sonuçları ile kıyaslandı.

A Study on the Gamma-Ray Attenuation Coefficients of $Al2O3$ and $Al2O3.TiO2$ Compounds

In this study, micro and nanometers-sized powders of $Al2O3$ and$Al2O3.TiO2$ were prepared using a hydraulic cold press and their gamma-radiationshielding properties were assessed at photon energies of 661.7, 1173.2 and 1332.5keV. A sample counting process was implemented using a gamma-rayspectrometer with a 3×3 NaI (Tl) detector and 13384-channel multichannelanalyser. The results we obtained indicated that the gamma-shielding propertiesof the materials increased with $TiO2$ addition and also, the particle size found to bean important effect on the properties. The results were compared with each otherand also compared with the results of similar studies reported in literature.

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