Gamma Radiation Shielding Efficiency of High Entropy Alloys: A Comparative Study

Ufuk Perişanoğlu

Article Details

Gamma Radiation Shielding Efficiency of High Entropy Alloys: A Comparative Study

Authors:

Ufuk Perişanoğlu

Publisher:

Van Yuzuncu Yıl University

Main Topics:

Atom ve Molekül Fiziği | Nükleer Fizik

Journal:

Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi Vol.29 Issue 2, pp.458-467

Document Type:

Article

Publication Date:

8/2024

Document Language:

English

Document ID (Org No.):

2001326214

pISSN:

1300-5413

Keywords:

Abstract:

 High entropy alloys HEAs represent a novel class of materials characterized by their unique composition of four or more principal elements in near-equiatomic ratios, offering exceptional properties for various applications. This study investigates the gamma radiation shielding parameters of selected HEAs, namely FeCoNiCrMn, TaNbHfZrTi, NbMoTaW, AlMoNbV, and NbTaTiV. Mass attenuation coefficients MAC were calculated by using EpiXS program over a photon energy range of 0.015-15 MeV and these results were verified using with the WinXCOM software. The results show that the MAC values are highest at low photon energies due to the photoelectric effect, with notable peaks corresponding to the K-shell absorption edges of specific elements. At photon energy of 0.015 MeV, the MAC values for the FeCoNiCrMn, TaNbHfZrTi, NbMoTaW, AlMoNbV, and NbTaTiV alloys are 57.6, 90.4, 98.9, 27.8, and 81.5 cm²g, respectively. Among these alloys, NbMoTaW exhibits the highest MAC value, whereas AlMoNbV displays the lowest. The half-value layer HVL and mean free path MFP values were also found thinner for NbMoTaW at all of the photon energies. Additionally, the effective atomic number Zeff and exposure buildup factors EBF were analyzed. The results demonstrate that NbMoTaW and TaNbHfZrTi, offer superior radiation shielding capabilities compared to conventional shielding materials, with higher usability in environments subjected to gamma radiation. These findings underscore the promise of HEAs in advanced shielding applications, showcasing their ability to enhance safety and performance in sectors with high demands.

 High entropy alloys HEAs represent a novel class of materials characterized by their unique composition of four or more principal elements in near-equiatomic ratios, offering exceptional properties for various applications. This study investigates the gamma radiation shielding parameters of selected HEAs, namely FeCoNiCrMn, TaNbHfZrTi, NbMoTaW, AlMoNbV, and NbTaTiV. Mass attenuation coefficients MAC were calculated by using EpiXS program over a photon energy range of 0.015-15 MeV and these results were verified using with the WinXCOM software. The results show that the MAC values are highest at low photon energies due to the photoelectric effect, with notable peaks corresponding to the K-shell absorption edges of specific elements. At photon energy of 0.015 MeV, the MAC values for the FeCoNiCrMn, TaNbHfZrTi, NbMoTaW, AlMoNbV, and NbTaTiV alloys are 57.6, 90.4, 98.9, 27.8, and 81.5 cm²g, respectively. Among these alloys, NbMoTaW exhibits the highest MAC value, whereas AlMoNbV displays the lowest. The half-value layer HVL and mean free path MFP values were also found thinner for NbMoTaW at all of the photon energies. Additionally, the effective atomic number Zeff and exposure buildup factors EBF were analyzed. The results demonstrate that NbMoTaW and TaNbHfZrTi, offer superior radiation shielding capabilities compared to conventional shielding materials, with higher usability in environments subjected to gamma radiation. These findings underscore the promise of HEAs in advanced shielding applications, showcasing their ability to enhance safety and performance in sectors with high demands.

 High entropy alloys HEAs represent a novel class of materials characterized by their unique composition of four or more principal elements in near-equiatomic ratios, offering exceptional properties for various applications. This study investigates the gamma radiation shielding parameters of selected HEAs, namely FeCoNiCrMn, TaNbHfZrTi, NbMoTaW, AlMoNbV, and NbTaTiV. Mass attenuation coefficients MAC were calculated by using EpiXS program over a photon energy range of 0.015-15 MeV and these results were verified using with the WinXCOM software. The results show that the MAC values are highest at low photon energies due to the photoelectric effect, with notable peaks corresponding to the K-shell absorption edges of specific elements. At photon energy of 0.015 MeV, the MAC values for the FeCoNiCrMn, TaNbHfZrTi, NbMoTaW, AlMoNbV, and NbTaTiV alloys are 57.6, 90.4, 98.9, 27.8, and 81.5 cm²g, respectively. Among these alloys, NbMoTaW exhibits the highest MAC value, whereas AlMoNbV displays the lowest. The half-value layer HVL and mean free path MFP values were also found thinner for NbMoTaW at all of the photon energies. Additionally, the effective atomic number Zeff and exposure buildup factors EBF were analyzed. The results demonstrate that NbMoTaW and TaNbHfZrTi, offer superior radiation shielding capabilities compared to conventional shielding materials, with higher usability in environments subjected to gamma radiation. These findings underscore the promise of HEAs in advanced shielding applications, showcasing their ability to enhance safety and performance in sectors with high demands.

 Yüksek entropili alaşımlar HEAlar, yaklaşık eşit oranlarda dört veya daha fazla temel elementin benzersiz bileşimiyle karakterize edilen ve çeşitli uygulamalar için olağanüstü özellikler sunan yeni bir malzeme sınıfını temsil eder. Bu çalışma, FeCoNiCrMn, TaNbHfZrTi, NbMoTaW, AlMoNbV ve NbTaTiV gibi seçili HEAların gama zırhlama parametrelerini araştırmaktadır. EpiXS programı kullanılarak 0.015-15 MeV enerji aralığında kütle azaltma katsayıları MAC hesaplanmış ve bu sonuçlar WinXCOM yazılımı ile doğrulanmıştır. Bulgular, MAC değerlerinin, fotoelektrik etki nedeniyle düşük foton enerjilerinde en yüksek olduğunu ve belirli elementlerin K-soğurma kıyılarına karşılık gelen belirgin pikler gösterdiğini ortaya koymaktadır. 0,015 MeV foton enerjisinde, FeCoNiCrMn, TaNbHfZrTi, NbMoTaW, AlMoNbV ve NbTaTiV alaşımları için MAC değerleri sırasıyla 57.6, 90.4, 98.9, 27.8 ve 81.5 cm²gdır. Bu alaşımlar arasında NbMoTaW en yüksek MAC değerini sergilerken, AlMoNbV en düşük değeri göstermektedir. Yarı kalınlık HVL ve ortalama serbest yol MFP değerleri de tüm foton enerjilerinde NbMoTaW için daha ince bulunmuştur. Ayrıca, etkin atom numarası Zeff ve maruz kalma birikim faktörleri EBF de analiz edilmiştir. Sonuçlar, NbMoTaW ve TaNbHfZrTinin, geleneksel koruma malzemelerine kıyasla üstün radyasyon koruma yetenekleri sunduğunu ve gama radyasyonuna maruz kalan ortamlarda daha yüksek kullanılabilirlik sağladığını göstermektedir. Bu bulgular, HEAların gelişmiş zırhlama uygulamalarında vaat ettiklerinin altını çizerek, yüksek taleplerin olduğu sektörlerde güvenlik ve performansı artırma yeteneklerini ortaya koymaktadır.

Article Details

Gamma Radiation Shielding Efficiency of High Entropy Alloys: A Comparative Study

Authors:

Ufuk Perişanoğlu

Publisher:

Van Yuzuncu Yıl University

Main Topics:

Atom ve Molekül Fiziği | Nükleer Fizik

Journal:

Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi Vol.29 Issue 2, pp.458-467

Document Type:

Article

Publication Date:

8/2024

Document Language:

English

Document ID (Org No.):

2001326214

pISSN:

1300-5413

Buildup factor

Effective atomic number

Gamma shielding

Half-value layer

High entropy alloys

Mass attenuation coefficientBirikim faktörü

Etkin atom numarası

Gama zırhlama

Kütle azaltma katsayısı

Yarı değer kalınlığı

Yüksek entropili alaşımlar

Issues

Article Details

Authors: Ufuk Perişanoğlu

Publisher: Van Yuzuncu Yıl University

Main Topics: Atom ve Molekül Fiziği | Nükleer Fizik

Journal: Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi Vol.29 Issue 2, pp.458-467

Document Type: Article

Publication Date: 8/2024

Document Language: English

Document ID (Org No.): 2001326214

pISSN: 1300-5413

Issues

Authors:

Ufuk Perişanoğlu

Publisher:

Van Yuzuncu Yıl University

Main Topics:

Atom ve Molekül Fiziği | Nükleer Fizik

Journal:

Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi Vol.29 Issue 2, pp.458-467

Document Type:

Article

Publication Date:

8/2024

Document Language:

English

Document ID (Org No.):

2001326214

pISSN:

1300-5413