İnşaat Malzemesi Olarak Kullanılan Beton Örneklerinde Uçucu Külün Radyasyon Koruma Etkinliği Üzerindeki Etkilerinin EGS4 Kodu Kullanılarak Hesaplanması

Yıl 2024, , 53 - 59, 31.03.2024

Esra Yılmaz Bayrak

https://doi.org/10.35229/jaes.1399774

Öz

Bu çalışmanın temel amacı, inşaat malzemesi olarak kullanılan beton örneklerinde çimentonun azaltılarak ve yerine uçucu kül kullanılmasının radyasyon koruma etkinliği üzerindeki etkilerini belirlemektir. Beton örneklerinin radyasyon koruma etkinliği, EGS4 kodu kullanılarak hesaplanmış ve teorik olarak XCOM verileri ile karşılaştırılarak tartışılmıştır. 59.5 ile 1332 keV arasındaki gama ışını enerji aralığında, uçucu kül ile karıştırılmış beton örneklerinin kütle soğurma katsayıları (μ/ρ), teorik olarak incelenmiştir; bu inceleme WinXcom ve EGS4 simülasyonlarıyla gerçekleştirilmiştir. Hesaplanan kütle soğurma katsayıları kullanılarak ortalama serbest yol (MFP), yarı değer tabakası (HVL), radyasyon koruma etkinliği (RPE), etkili atom numarası (Zeff) ve gama ışını kerma katsayıları (kγ) gibi çeşitli koruma parametreleri belirlenmiştir. İnşaat malzemesi olarak kullanıldığında betonun bileşiminde çimentonun azaltılması ve uçucu kül eklenmesinin, radyasyon koruma etkinliği üzerinde etkileyici değişikliklere yol açtığı gözlemlenmiştir.

Anahtar Kelimeler

EGS4 kodu, Kütle soğurma katsayısı, Uçucu kül beton, γ-kerma katsayısı.

Calculation of The Effects of Fly Ash in Concrete Samples Used as Construction Materials on Radiation Shielding Efficiency Using EGS4 Code

Öz

The aim of this study is to determine the effects of reducing cement and replacing it with fly ash in concrete samples used as construction materials on the radiation shielding efficiency. The radiation shielding effect of concrete samples was determined using the EGS4 code. By contrasting the outcomes with XCOM data, theoretical discussion was conducted. At gamma ray energies between 59.5 and 1332 keV, the mass attenuation coefficients (μ/ρ) of concrete samples mixed with fly ash were theoretically investigated using WinXCOM and EGS4. Then, several shielding parameters, including mean free path (MFP), half value layer (HVL), radiation protection efficiency (RPE), effective atomic number (Zeff), and gamma-ray kerma coefficients (kγ), were found using the mass attenuation coefficients. It has been noted that the parameters governing radiation shielding performance of concrete samples used as building materials are altered when cement is reduced and fly ash is substituted.

Anahtar Kelimeler

EGS4 code, Fly-ash concrete, Mass attenuation coefficient, γ-kerma coefficient.

Kaynakça

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