Hastelloy X ve Tantal Katkılı PEEK Temelli Dört Katmanlı Kompozit Yapıların Nötron Zırhlama Performansı ve İkincil Radyasyon Analizi: Monte Carlo Çalışması

Abstract

Bu çalışmada, Hastelloy X ve tantal katkılı PEEK bazlı malzemelerden oluşan dört katmanlı kompozit yapıların nötron zırhlama performansı Monte Carlo simülasyonları ile incelenmiştir. Termal (0,025 eV) ile yüksek enerjiler (10 MeV) arasındaki nötron enerjileri için üç farklı katman konfigürasyonu analiz edilmiştir. Koruma performansı, geçirilen nötron sayısı, ikincil parçacık üretimi, ortalama serbest yol ve makroskobik kesit açısından değerlendirilmiştir. Sonuçlar, nötron enerjisi arttıkça geçirilen nötron sayısının arttığını ve zırhlama etkinliğinin azaldığını göstermiştir. Kompozit konfigürasyonlar arasında birincil nötron geçirimi açısından önemli bir fark gözlenmemiştir. İkincil parçacık analizi, düşük enerjilerde ihmal edilebilir seviyede olan üretimin, özellikle 4,5 MeV ve 10 MeV’de belirgin şekilde arttığını ortaya koymuştur. Katman bazlı değerlendirmede, etkileşimlerin büyük kısmının ilk katmanda gerçekleştiği belirlenmiştir. Ayrıca, nötron kaynaklı radyasyon hasarı TID ve DPA parametreleri ile incelenmiş ve hasarın enerji ile arttığı görülmüştür. Kompozit malzemelerin metalik yapılara kıyasla daha düşük radyasyon hasarı gösterdiği belirlenmiştir. Genel olarak, çok katmanlı kompozit yapıların etkili nötron zırhlama sağladığı ve enerjiye bağlı davranış ile ikincil parçacık etkilerinin zırhlama tasarımında kritik olduğu sonucuna ulaşılmıştır.

Keywords

• Nötron Zırhlama
• Çok katmanlı yapılar
• İkincil parçacık oluşumu
• Monte Carlo simülasyonu
• Radyasyon hasarı

Supporting Institution

Bu çalışma için dış kaynaklı bir finansman alınmamıştır.

Project Number

Bu çalışmanın proje numarası bulunmamaktadır.

Ethical Statement

Bu çalışmada, “Yükseköğretim Kurumları Bilimsel Araştırma ve Yayın Etiği Yönergesi” kapsamında uyulması gerekli tüm kurallara uyulduğunu, bahsi geçen yönergenin “Bilimsel Araştırma ve Yayın Etiğine Aykırı Eylemler” başlığı altında belirtilen eylemlerden hiçbirinin gerçekleştirilmediğini taahhüt ederiz.

Thanks

Yazarın beyan edecekleri bir teşekkür bulunmamaktadır.

Neutron Shielding Performance and Secondary Radiation Analysis of Four-Layer Composite Structures Based on Hastelloy X and Tantalum-Doped PEEK: A Monte Carlo Study

Abstract

In this study, the neutron shielding performance of four-layer composite structures composed of Hastelloy X and tantalum-modified PEEK-based materials was investigated using Monte Carlo simulations. Three different layer configurations were analyzed for neutron energies ranging from thermal (0.025 eV) to high energies (10 MeV). Shielding performance was evaluated in terms of transmitted neutron count, secondary particle production, mean free path, and macroscopic cross-section. The results showed that as neutron energy increased, the number of transmitted neutrons increased and shielding effectiveness decreased. No significant difference in primary neutron transmission was observed among the composite configurations. The secondary particle analysis revealed that production, which is negligible at low energies, increases significantly at 4.5 MeV and 10 MeV. In the layer-by-layer evaluation, it was determined that the majority of interactions occur in the first layer. Additionally, neutron-induced radiation damage was examined using TID and DPA parameters, and it was observed that the damage increases with energy. It was determined that composite materials exhibit lower radiation damage compared to metallic structures. Overall, it was concluded that multilayer composite structures provide effective neutron shielding, and that energy-dependent behavior and secondary particle effects are critical in shielding design.

Keywords

• Neutron shielding
• Multilayer structures
• Secondary particle production
• Monte Carlo simulation
• Radiation damage

Supporting Institution

This research received no external funding.

Project Number

Bu çalışmanın proje numarası bulunmamaktadır.

Ethical Statement

In this study, we undertake that all the rules required to be followed within the scope of the "Higher Education Institutions Scientific Research and Publication Ethics Directive" are complied with, and that none of the actions stated under the heading "Actions Against Scientific Research and Publication Ethics" are not carried out.

Thanks

The author have no acknowledgements to declare.

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