Characterization of gamma radiation shielding properties of different ratios of Eu2O3 — Li2O — TeO2 mixtures using Geant4 simulation code and WinXCOM software

Yıl 2020, Cilt: 22 Sayı: 1, 204 - 215, 10.01.2020

Ali Aşkın , Murat Dal

https://doi.org/10.25092/baunfbed.680619

Öz

In this study, mass attenuation coefficient (µm), gamma transmission fraction (T), half value layer (HVL) and mean free path (MFP) of xEu2O3—(25-x)Li2O—75TeO2 (Lithium-Europium-tellurite) (x = 1%, 2%, 3%, 4%, 5% moles) glasses have been investigated at the gamma ray energies of 356 keV, 662 keV, 1173 keV, 1330 keV and 2510 keV by using the Geant4 model of a high purity germanium (HPGe) detector and WinXCOM database. When the results have been interpreted, depending on the high atomic number and the fraction of Europium in the chemical formula, it was seen that the glass sample with 5% moles of Eu2O3 has higher radiation shielding ability compared to the glass sample with 1% mol of Eu2O3

Anahtar Kelimeler

Radiation shielding, attenuation coefficient, glass, Monte Carlo simulation, Geant4

Farklı oranlardaki Eu2O3—Li2O—TeO2 karışımlarının gama radyasyonu yalıtım özelliklerinin Geant4 simülasyon kodu ve WinXCOM veri yazılımı kullanılarak karakterizasyonu

Öz

Bu çalışmada, xEu2O3—(25-x)Li2O—75TeO2 (lityum-öropiyum-tellür) (x = %1, %2, %3, %4, %5 mol) camlarının gama radyasyonu kütle zayıflatma katsayıları (µm), gama radyosyonu transmisyonu (T), yarı değer kalınlığı (HVL) ve ortalama serbest yol (MFP) yalıtım parametreleri yüksek saflıkta germanyum (HPGe) dedektörünün Geant4 modeli ve WinXCOM veri tabanı kullanılarak 356 keV, 662 keV, 1173 keV, 1330 keV, 2510 keV ve 4000 keV foton enerjilerinde araştırılmıştır. Elde edilen sonuçlar cam örneklerinin kimyasal bileşenleri ve foton etkileşim mekanizmaları açısından değerlendirildiğinde, Öropiyum’un yüksek kütle numarası ve kimyasal formüldeki oranına bağlı olarak, %5 mol Eu2O3 içeren cam numunesinin gama radyasyonu yalıtım özelliklerinin %1 mol Eu2O3 içeren camdan yüksek olduğu görülmüştür.

Anahtar Kelimeler

Radyasyon yalıtımı, zayıflatma katsayısı, cam, Monte Carlo simülasyonu, Geant4

Kaynakça

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