Investigation of (n,2n) and (n,p) Reaction Cross Sections of Ir-191 and Ir-193 Isotopes

Year 2023, , 50 - 61, 22.06.2023

Halide Şahan Eda Şenyiğit

https://doi.org/10.29233/sdufeffd.1206635

Abstract

The nuclear data for neutron induced reactions up to 20.0 MeV is used in many different fields such as nuclear physics, astrophysics, and medicine. In this study, cross-section calculations for (n,2n), (n,p) and (n,a) reactions of iridium isotopes (191,193Ir) have been calculated using different level density models up to 20,0 MeV. The ALICE-ASH, EMPIRE-3.2 and TALYS-1.95 nuclear codes were used in model calculations. The Fermi Gas Model in ALICE-ASH, The Generalized Superfluid Level Density Model in EMPIRE-3.2 and the Constant Temperature Fermi Gas Level Density Model in TALYS-1.95 code have been selected. The results have been discussed and compared with the experimental data found in literature and with different evaluated nuclear data (ENDFB-VIII.0, JEFF-3.3 and JENDL-2017). It is believed that the results will make important contributions to the development of future cross-section studies.

Keywords

(n 2n), (n p), (n a), reaction cross sections, Theoretical nuclear reaction models:, ALICE-ASH, EMPIRE-3.2,, TALYS 1.95

Ir-191 ve Ir-193 izotoplarının (n,2n), (n,p) ve (n,a) Reaksiyon Tesir Kesitlerinin İncelenmesi

Abstract

20,0 MeV’e kadar nötron kaynaklı reaksiyonlar için nükleer veriler, nükleer fizik, astrofizik ve tıp gibi birçok farklı alanda kullanılmaktadır. Bu çalışmada, farklı seviye yoğunluk modelleri kullanılarak iridyum izotoplarının (191,193Ir) (n,2n), (n,p) ve (n,a) reaksiyon tesir kesitleri 20,0 MeV’e kadar hesaplanmıştır. Model hesaplamalarında, ALICE-ASH, EMPIRE-3.2 ve TALYS-1.95 bilgisayar kodları kullanılmıştır. ALICE-ASH’de Fermi Gas Modeli, EMPIRE-3.2’de Genelleştirilmiş Süper Akışkan Modeli ve TALYS-1.95’de Sabit Sıcaklık Fermi Gaz Modeli seçilmiştir. Sonuçlar tartışılmış ve literatürde bulunan deneysel verilerle ve ENDF veri kütüphanesinden elde edilen değerlendirilmiş verilerle (ENDFB-VIII.0, JEFF-3.3 ve JENDL-2017) kıyaslanmıştır. Sonuçların, gelecekte yapılacak olan tesir kesit araştırmalarının geliştirilmesine önemli katkılar sağlayacağına inanılmaktadır.

Keywords

(n 2n) (n p) ve (n a) reaksiyon tesir kesitleri, Teorik nükleer reaksiyon modelleri: ALICE-ASH, EMPIRE-3.2, TALYS 1.95, (n 2n), (n p), (n a), reaction cross sections, Theoretical nuclear reaction models:, ALICE-ASH

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