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Measurements of ^(nat) Cd(γ,x)reaction cross sections and isomer ratio of ^(1,5m.g)Cd with the bremsstrahlung end-point energies of 50 and 60 MeV

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Chinese Physics C 2021年第12期45卷 80-93页

作者： Muhammad Nadeem Md.Shakilur Rahman Muhammad Shahid Guinyun Kim Haladhara Naik Nguyen Thi Hien Department of Physics Kyungpook National UniversityDaegu 41566Korea Institute of Nuclear Science and Technology Bangladesh Atomic Energy CommissionSavarDhakaBangladesh Radiochcmistry Division Bhabha Atomic Research CentreMumbai 400085India

The flux-weighted average cross sections ^(nat) Cd(γ,xn)^(115g,m,111m,109,107,105,104)Cd and ^(nat) Cd(γ,x)^113g,112,111g,110m)Ag reactions were measured at the bremsstrahlung end-point energies of 50 and 60 *** activa tion and off-line y-ray spectrometric technique was carried out using the 100 MeV electron linear accelerator at the Pohang Accelerator Laboratory,*** ^(nat)lCd(γ,xn) reaction cross sections as a function of photon energy were theoretically calculated using the TALYS-1.95 and the EMPIRE-3.2 Malta ***,the flux-weighted average cross sections were obtained from the theoretical values of mono-energetic *** values were compared with the flux-weighted values from the present study and were found to be in general *** measured experimental reaction cross-sections and integral yields were described for cadmium and silver isotopes in the ^(nat)Cd(γ,xn)^(115g,m,111m,109,107,105,104) and ^(nat)Cd(γ,x)^(113g,112.111g,110m)Ag *** isomeric yield ratio(IR) of ^(115g.m)Cd in the ^(nat)Cd(γ,xn) reaction was determined for the two bremsstrahlung end-point *** measured isomeric yield ratios of ^(115g,m)Cd in the ^(nat)Cd(γ,xn) reaction were also compared with the theoretical values of the nuclear model codes and previously published literature data of the ^(116)Cd(γ,x) and ^116(γ,2n) *** was found that the IR value increases with increasing projectile energy,which demonstrates the characteristic of excitation ***,the higher IR value of ^(115g.m)Cd in the ^(116)Cd(n,2n)reaction compared to that in the ^(116)Cd(γ,x)reaction indicates the role of compound nuclear spin alongside excitation energy.

关键词： ^(nat)Cd(γ xn)reaction cross sections isomer yield ratio of^(115g m)Cd off-lineγ-ray spectrometric technique TALYS-1.95 tendl-2019 EMPIRE-3.2 Malta

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