Demir Tabanlı Bazı Metalik Camlar İçin Gama Radyasyonu Zırhlama Karakteristiklerinin Belirlenmesi

Sunulan bu çalışmada, Fe81B13.5Si3.5C2, Fe79B16Si5, Fe78B13Si9 ve Fe40Ni38B18Mo4 içeriklerine sahip ve FeBSiC, FeBSi1, FeBSi2 ve FeNiBMo olarak kodlanan metalik camların gama radyasyonu zırhlama karakteristikleri incelenmiştir. İnceleme yapmak için WinXCOM programı ve GEANT4 ve FLUKA simülasyon kodları yardımıyla 0.060 ila 2.614 MeV foton enerjileri aralığında metalik camların kütle azaltma katsayıları hesaplanmıştır. Hesaplanan kütle azaltma katsayıları yardımıyla lineer azaltma katsayıları, yarı ve onda-bir kalınlık değerleri, ortalama serbest yol, etkin atom numarası ve elektron yoğunluğu parametreleri hesaplanmıştır. Hesaplanan gama radyasyonu zırhlama parametrelerinin foton enerjisi ile değişimleri irdelenmiştir. Kütle ve lineer azaltma katsayıları, etkin atom numarası ve elektron yoğunluğu parametrelerinin artan foton enerjisi azaldığı gözlemlenirken, yarı ve onda-bir kalınlık değerleri ve ortalama serbest yol parametrelerinin artan foton enerjisi ile arttığı gözlemlenmiştir. Düşük foton enerjisi bölgesinde metalik camların daha iyi gama zırhlama kabiliyetlerine sahip olduğu ve FeNiBMo olarak kodlanan metalik camın incelenen diğer metalik camlara göre daha iyi gama radyasyonu zırhlama kapasitesinin olduğu gözlemlenmiştir.

Anahtar Kelimeler:

Metalik cam, Gama Zırhlama, WinXCOM, GEANT4, FLUKA., Metallic glass, Gamma shielding

Determination of Gamma Radiation Shielding Characteristics for Some Iron-Based Metallic Glasses

In this study, the gamma radiation shielding characteristics of metallic glasses having Fe81B13.5Si3.5C2, Fe79B16Si5, Fe78B13Si9 and Fe40Ni38B18Mo4 components and coded as FeBSiC, FeBSi1, FeBSi2 and FeNiBMo were investigated. In order to investigate, the mass attenuation coefficients for metallic glasses in the photon energies range of 0.060 to 2.614 MeV were calculated with the help of WinXCOM program and GEANT4 and FLUKA simulation codes. The linear attenuation coefficient, half and tenth value layers, mean free path, effective atomic number and electron density parameters were calculated with the help of the calculated mass attenuation coefficients. Variations of the calculated gamma radiation shielding parameters with photon energy were discussed. It was observed that mass and linear attenuation coefficients, effective atomic number and electron density parameters decreased with increasing photon energy, while half and tenth value layers and mean free path parameters increased with increasing photon energy. It has been observed that metallic glasses have better gamma shielding capabilities in the low photon energy region, and metallic glass coded as FeNiBMo has better gamma radiation shielding capacity than other studied metallic glasses.

Keywords:

Metallic glass, Gamma shielding, WinXCOM, GEANT4, FLUKA,

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