Photoproduction of the ^55-57Co nuclei on ^{\rm nat}Ni at the bremsstrahlung end-point energy of 35-94 MeV

2024/07/12 by I. S. Timchenko O. S. Deiev, S. M. Olejnik, Deiev, I. S. Timchenko O. S. +11 · 1 citation
Physics and Astronomy · #Crystallography and Radiation Phenomena #FOS: Physical sciences #Nuclear Experiment (nucl-ex) #Nuclear physics research studies #Rare-earth and actinide compounds

paper · pdf · doi:10.48550/arxiv.2407.09245

openalex publication_date 2024/07/12 · openalex created_date 2024/07/16 · openalex updated_date 2026/07/28

Abstract

Production of the ^55-57Co nuclei on ^{\rm nat}Ni in photonuclear reactions using bremsstrahlung gamma photon irradiation with end-point energy E_\rmγmax between 35 and 94~MeV has been studied. The experiment was performed at the electron linear accelerator LUE-40 NSC KIPT using the methods of γ activation and off-line γ-ray spectroscopy. The obtained experimental flux-averaged cross-sections ⟨σ(E_\rmγmax)⟩ agree with the data found in literature. The theoretical flux-averaged cross-sections ⟨σ(E_\rmγmax)⟩_\rmth for the production of ^55-57Co and ^55-57Ni were estimated using the cross-section values σ(E) from the TALYS1.95 code and bremsstrahlung spectra of gamma photons calculated by GEANT4.9.2. The experimental results for ^56,57Co agree with the cumulative ⟨σ(E_\rmγmax)⟩_\rmth. However theoretical prediction fails to reproduce the measured cross-sections for the production of ⁵⁵Co.

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• Cross-section of the ^{\rm nat}\rmNi(γ,\rm p x\rm n)⁵⁸\rmCo reaction at the bremsstrahlung end-point energy of 35-94 MeV

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