https://doi.org/10.1140/epja/s10050-023-01137-x
Regular Article - Experimental Physics
Measurement of the flux-weighted cross-sections for the natYb(γ,xn)175,169,167Yb reactions in the Bremsstrahlung end-point energies of 12–16 MeV and 60–70 MeV
1
Radiochemistry Division, Bhabha Atomic Research Centre, 400085, Mumbai, India
2
Center for High Energy Physics, Kyungpook National University, 41566, Daegu, Korea
3
Institute of Radiation Physics, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Dressden, Germany
4
Physics Department, University of Texas at Arlington, 76019, Arlington, TX, USA
5
Division of Advanced Nuclear Engineering, Pohang University of Science and Technology, 37673, Pohang, Korea
Received:
7
July
2023
Accepted:
26
September
2023
Published online:
31
October
2023
The flux-weighted cross-sections of the natYb(γ, xn)175,169,167Yb reactions were measured at the bremsstrahlung end-point energies of 12, 14, 16, 60, 65, and 70 MeV by the activation and off-line γ-ray spectrometric technique using the 20 MeV electron linac (ELBE) at Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Dresden, Germany, and 100 MeV electron linac at the Pohang Accelerator Laboratory (PAL), Korea. The natYb(γ, xn)175,169,167Yb reaction cross-sections as a function of photon energy were also calculated theoretically using the TALYS 1.9 code. The flux-weighted average values at different end-point energies were obtained from the literature as well as from the theoretical values reported in the TALYS library based on mono-energetic photons. They were compared with the flux-weighted values based on the present experimental data and were found to be in general agreement. It was also found that the experimental and theoretical cross-section data increased from the threshold values to a certain energy, where other reaction channels opened, which highlights the role of excitation energy. After a certain value, the individual reaction cross-sections decrease with an increase in bremsstrahlung energy owing to the opening of other reaction channels, which indicates the partitioning of energy in different reaction channels.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
