CR-39 ve Trivex Optik Lenslerinin Foton Maruz Kalma ve Enerji Soğurma Buildup Faktörlerinin Karşılaştırılması

Abstract

Bu çalışmada CR-39 ve Trivex optik lenslerinin enerji absorpsiyon buildup faktörü (EABF) ve maruz kalma buildup faktörleri (EBF), geometrik ilerleme (GP) uydurma yöntemi kullanılarak ve ANSI/ANS-6.4.3 veri tabanı dikkate alınarak hesaplanmıştır. Çalışma 0.015 ila 15 MeV enerji aralığında ve 40 mfp'ye kadar farklı penetrasyon derinliği için kapsamlı bir şekilde analiz edilmiştir. İncelenen materyallerde hesaplanılan her iki buildup faktörünün gelen fotonun enerjisine, penetrasyon derinliklerine ve materyalin kimyasal bileşimine bağımlılık gösterdiği ve tutarsız saçılma etkileşim olasılıklarının baskın olduğu enerji bölgesinde maksimum değerlerine ulaştığı bulundu. Sonuçlar, CR-39 optik lensinin daha iyi radyasyon koruma performansına sahip olduğunu gösterdi. Sonuçların uygunluğu radyasyon koruyucu parametrelerin hesaplanmasında literatürde sıklıkla tercih edilen EPICS2017 ve Phy-X/PSD güçlü yazılım araçları ile karşılaştırıldı. EPICS2017 ve Phy-X/PSD yazılımları ile bu çalışmadan elde edilen sonuçlar arasında nispi değişikliklerin CR-39 ve Trivex Optik lensi için sırasıyla %8, %9 olduğu bulundu. Bu, çalışmadan elde edilen sonuçların iyi bir uyum gösterdiğini belirtmektedir.

Keywords

• CR-39
• Trivex Optik lensleri
• Buildup Faktörü
• EPICS2017 Kütüphanesi
• Phy-X/PSD Yazılımı

Comparison Photon Exposure and Energy Absorption Buildup Factors of CR-39 and Trivex Optical Lenses

Abstract

In the present study, Energy Absorption Buildup Factor (EABF) and Exposure Buildup Factors (EBF) of the CR-39 and Trivex optical lenses are calculated by using the Geometric Progression (GP) fitting method based on ANSI/ANS-6.4.3 database. The study analyses comprehensively for different penetration depths within the energy range of 0.015 - 15 MeV up to 40 mfp. The buildup factors are calculated in the examined materials depending on the photon energy that arrives, the penetration depths, and the chemical composition of the material reach at maximum values in the energy region where inconsistent scattering interaction probabilities are intensive. The results show that the CR-39 optical lens had better radiation shielding performance. The suitability of the results is compared with the powerful software tools (EPICS2017 and Phy-X/PSD), which are preferred frequently in the literature to calculate radiation shielding parameters. It is found that the relative changes between the EPICS2017 and Phy-X/PSD software compared with the results of this study are about 8% and 9% for the CR-39 and Trivex optical lens, respectively. This indicates that the results from the study are in good agreement.

Keywords

• CR-39
• Trivex Optical lenses
• Buildup factors
• EPICS2017 Library
• Phy-X/PSD Software

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