Bi2O3 katkısınının emaye frit malzemelerinin fiziksel, yapısal ve Gama/X-Işını koruma performansı üzerindeki etkisi

Abstract

Bizmut, kurşun gibi yüksek atom numarasına ve yüksek yoğunluğa sahip elementler radyasyon zırhlama için en etkili ajanlar arasında yer alır. Bu çalışmanın amacı, emaye uygulamalarında kullanılmak üzere bizmut oksit (Bi2O3) katkısı ile geliştirilen frit malzemesinin fiziksel, yapısal ve radyasyon (gama ve x-ışınlarına) özelliklerinin incelenmesidir. Radyasyon özelliklerini göstermek için radyasyon zırhlama parametreleri belirlenmiş, nihai ürününün fiziksel ve yapısal özellikleri ise konvansiyonel analiz ve inceleme yöntemleriyle incelenmiştir. Frit numunelerinin kütle zayıflama katsayısı (μm) ve yarı değer kalınlığı parametreleri XCOM ile 1,5 keV-5 MeV enerji aralığında hesaplanmıştır. Artan katkı miktarı ile kütle azaltma katsayı değerinde artış meydana gelmiştir. Bizmutun K kenarından elektron koparılması sonucu fotoelektrik olay meydana gelmiştir. Farklı bizmut oksit katkı oranlarına (ağ. % 0,9,18 ve 27) sahip emaye kompozisyonunun sinterlenmesi sonucunda ağırlıklı olarak yapı amorfluğunu korumuş olup α- Bi2O3 fazı elde edilmiştir. Artan katkı miktarına bağlı olarak yoğunluk değerleri ise sırasıyla 2.456, 2.786, 2.856 ve 3.218 gr/cm3’tür.

Keywords

• Frit
• emaye
• bizmut oksit
• radyasyon zırhlama.

The effect of Bi2O3 addition on the physical, structural and Gamma/X-Ray protection performance of enamel frit materials

Abstract

The most effective agents for radiation shielding are elements with high atomic numbers and high densities such as bismuth and lead. The aim of this study is to investigate the physical, structural, and radiation shielding properties of a frit material developed with bismuth oxide (Bi2O3) additive for potential use in enamel applications. To evaluate its radiation attenuation capabilities, key shielding parameters against gamma and X-rays were determined. The physical and structural characteristics of the final product were analyzed using conventional characterization and examination techniques. The mass attenuation coefficient (μ/ρ) and half-value layer (HVL) parameters of the frit samples were calculated using the XCOM database over the energy range of 1.5 keV to 5 MeV. An increase in the Bi2O3 content resulted in a corresponding increase in the mass attenuation coefficient. Photoelectric interactions were observed due to electron ejection from the K-edge of bismuth. Upon sintering of enamel compositions containing varying Bi2O3 contents (0, 9, 18, and 27 wt.%), the structure largely retained its amorphous structure, while the minor α- Bi2O3 crystalline phase was also detected. The density values of samples are determined as 2.456, 2.786, 2.856, and 3.218 g/cm3, respectively depending on the increasing additive amount.

Keywords

• Frit
• enamel
• bismuth oxide
• radiation shielding.

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