27 Al, 54 Fe, 58 Ni ve 90 Zr Hedef Çekirdekleri İçin 10–30 MeV Enerji Aralığında (γ,p) Reaksiyon Tesir Kesiti Hesaplamaları

Yıl 2014, Cilt: 9 Sayı: 2, 107 - 112, 31.12.2014

Veli Çapalı , Hasan Özdoğan , S. Sedat Doğan Abdullah Kaplan

Öz

Özet: Bu çalışmada; 27Al, 54Fe, 58Ni ve 90Zr gibi füzyon reaktörü yapı malzemeleri için 10–30 MeV enerji aralığında oluşturulan (γ,p) reaksiyonlarının denge ve denge–öncesi nükleer reaksiyon modelleri kullanılarak, proton üretim tesir kesitleri incelenmiştir. Hesaplamalarda, Denge–öncesi hesaplamalar için; TALYS 1.6 İki Bileşenli Exciton Model ve EMPIRE 3.1 Exciton Model, denge hesaplamaları için ise; PCROSS Weisskopf–Ewing Model kullanılmıştır. Elde edilen sonuçlar, Deneysel Nükleer Reaksiyon Data (EXFOR) Kütüphanesi'nden alınan deneysel değerlerle karşılaştırılmıştır.

Anahtar kelimeler: Nükleer reaksiyon modelleri, füzyon reaktörleri, reaksiyon tesir–kesiti, EXFOR, denge ve denge–öncesi reaksiyonlar

(γ,p) Reaction Cross Section Calculations for 27Al, 54Fe, 58Ni and 90Zr Target Nuclei in the Energy Range of 10–30 MeV

Abstract: In this study, proton production cross-sections of (γ,p) reactions for several fusion reactor structural materials such as 27Al, 54Fe, 58Ni and 90Zr have been investigated in the incident photon energy range of 10–30 MeV using pre–equilibrium and equilibrium nuclear reaction models. TALYS 1.6 Two Component Exciton Model and EMPIRE 3.1 Exciton Model for the pre–equilibrium reactions and PCROSS Weisskopf–Ewing Model for the equilibrium reactions have been used. The calculated results have been compared with experimental data taken from the Experimental Nuclear Reaction Data (EXFOR) library.

Key words: Nuclear reaction models, fusion reactors, reaction cross–section, EXFOR, equilibrium and pre–equilibrium reactions

Anahtar Kelimeler

Nükleer reaksiyon modelleri, füzyon reaktörleri, reaksiyon tesir–kesiti, EXFOR, denge ve denge–öncesi reaksiyonlar

(γ,p) Reaction Cross Section Calculations for 27Al, 54Fe, 58Ni and 90Zr Target Nuclei in the Energy Range of 10–30 MeV

Öz

In this study, proton production cross-sections of (γ,p) reactions for several fusion reactor structural materials such as 27Al, 54Fe, 58Ni and 90Zr have been investigated in the incident photon energy range of 10–30 MeV using pre–equilibrium and equilibrium nuclear reaction models. TALYS 1.6 Two Component Exciton Model and EMPIRE 3.1 Exciton Model for the pre–equilibrium reactions and PCROSS Weisskopf–Ewing Model for the equilibrium reactions have been used. The calculated results have been compared with experimental data taken from the Experimental Nuclear Reaction Data (EXFOR) library

Anahtar Kelimeler

Nuclear reaction models, fusion reactors, reaction cross–section, EXFOR, equilibrium and pre–equilibrium reactions

Kaynakça

• Brookhaven National Laboratory, National Nuclear Data Center, EXFOR/CSISRS (Experimental Nuclear Reaction Data File). Database Version of November 20, 2013 (2013), (http://www.nndc.bnl.gov/exfor/)
• Capote R., et al., Final Report on Research Contract 5472/RB, INDC(CUB)-004 (Higher Institute of Nuclear Science and Technology, Cuba), Translated by the IAEA on March 1991 (PCROSS program code)
• Weisskopf V.F., Ewing D.H., 1940. On the yield of nuclear reactions with heavy elements, Physical Review, 57(6): 472-486.
• Herman M., et al., 2007. EMPIRE: Nuclear Reaction Model Code System for Data Evaluation, Nucl. Data Sheets, 108: 2655-2715.
• Herman M., et al., EMPIRE–3.1 Rivoli Modular System for Nuclear Reaction Calculations and Nuclear Data Evaluation, User's Manual (2012).
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• Hasan ÖZDOĞAN e-posta : [e-mail]
• S. Sedat DOĞAN e-posta: [e-mail]
• Abdullah KAPLAN e-posta: [e-mail]