Aycan ŞENGÜL, Kadir AKGÜNGÖR, İskender AKKURT

Akışkan Dental Kompozitin Gamma Radyasyonu Soğurma Özellikleri

Bu çalışma, insan vücudunda doğal veya sentetik malzeme olarak kullanılan akışkan dental kompozitin radyasyon soğurma özelliklerinin Monte Carlo yöntemi kullanılarak hesaplanması ve XCOM sonuçları ile karşılaştırmayı amaçlamaktadır. Lineer soğurma katsayısından elde edilen veriler ile ortalama serbest yol (MFP), yarı değer kalınlığı (HVL) ve onda bir değer kalınlığı (TVL) gibi parametreler de elde edilmiştir. GAMOS 6.2 programı ile gerçekleştirilen simülasyonlarda, disk şeklinde bir soğurucu malzeme üzerine gönderilen noktasal foton kaynak geometrisi kullanılmıştır. 1 keV-20 MeV aralığında otuz altı farklı foton enerjisinde gerçekleştirilmiş ve XCOM verileri ile karşılaştırılmış ve uyumlu bulunmuştur. Bu yöntemin lineer soğurma katsayıları literatürde yer almayan malzeme bileşimleri ve enerji değerleri için alternatif bir hesaplama aracı olarak güvenle kullanılabileceği düşünülmektedir.

Anahtar Kelimeler:

Monte Carlo, Lineer soğurma katsayısı, Biyomalzemeler, Kompozitler, GAMOS 6.2

Gamma Radiation Absorption Properties of Fluid Dental Composite

This study presents the radiation absorption properties of fluid dental composite was investigated computationally and experimentally. In the computational part of the study, I and I0 values were obtained for biomaterial by using the Gamos 6.2 simulation program. The results calculated with the GAMOS simulation program were compared with the XCOM data. In addition to (μ) and (μ/ρ) values, half value layer (HVL), tenth value layer (TVL) and mean free path (MFP) quantities were obtained which are important in terms of radiation absorption properties. The simulation results were found to be compatible with XCOM data for this composit biomaterial. The simulation results showed that the Monte Carlo technique can be used as an alternative to calculate the mass absorption coefficients at the requested gamma energy, especially for samples that are physically difficult to produce. Keywords: GAMOS, XCOM, biomaterial, linear attenuation coefficients

Keywords:

Monte Carlo, GAMOS 6.2, XCOM, composits biomaterial, linear attenuation coefficients,

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