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Production cross-sections of Mo-isotopes induced by fast neutrons based on the 9Be(p, n) reaction

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Abstract

We measured the flux-weighted average cross-sections of the 100Mo(n, 2n)99Mo and 92Mo(n, 3n)90Mo reactions with the average neutron energies between 14.0- and 31.8-MeV by using an activation and off-line γ-ray spectrometric technique. The fast neutrons were generated based on the 9Be(p, n) reaction with the proton energies of 25-, 35- and 45-MeV from the MC-50 Cyclotron at the Korea Institute of Radiological and Medical Sciences (KIRAMS). The neutron flux was measured by using the 27Al(n, α)24Na monitor reaction, whereas the neutron spectra were simulated by using the MCNPX 2.6.0 code. The theoretical cross-sections of the 100Mo(n, 2n)99Mo and 92Mo(n, xn)91.90,89Mo reactions as a function of mono-energetic neutron were calculated by using the TALYS-1.9 code. The present results for the 100Mo(n, 2n)99Mo and 92Mo(n, 3n)90Mo reactions are compared with the calculated neutron flux-weighted average values based on the literature data and theoretical cross-sections as a function of mono-energetic neutron energy, and show a good agreement.

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This manuscript has associated data in a data repository. [Authors’ comment: All data used in this paper are deposited in the EXFOR library and the data produced during this study will be deposited in the same library.]

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Acknowledgements

The authors would like to express their sincere thanks to the staff of the MC-50 Cyclotron in the Korea Institute of Radiological and Medical Sciences (KIRAMS) for the excellent operation and their support during the experiment. This research was partly supported by the National Research Foundation of Korea (NRF) through a Grant provided by the Ministry of Science and ICT & Future Planning (NRF-2017R1D1A1B03030484, NRF-2013M7A1A1075764, NRF-2018R1A6A1A06024970, and NRF-2019H1D3A2A01102637).

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Authors and Affiliations

  1. Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai, 400085, India

    Haladhara Naik

  2. Department of Physics, Kyungpook National University, Daegu, 41566, Republic of Korea

    Haladhara Naik, Guinyun Kim, Kwangsoo Kim, Muhammad Nadeem & Muhammad Sahid

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  1. Haladhara Naik
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  2. Guinyun Kim
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Correspondence to Guinyun Kim.

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Naik, H., Kim, G., Kim, K. et al. Production cross-sections of Mo-isotopes induced by fast neutrons based on the 9Be(p, n) reaction. Eur. Phys. J. Plus 135, 704 (2020). https://doi.org/10.1140/epjp/s13360-020-00728-7

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