Abstract
The production cross-section of the medical isotope, 99Mo from the enriched 100Mo(n,2n) reaction with the average neutron energies of 21.9 and 26.5 MeV has been determined for the first time by using an off-line γ-ray spectrometric technique. The average neutron energies were generated by using the 9Be(p,n) reaction with the proton energies of 35 and 45 MeV from the MC50 cyclotron of the Korea Institute of Radiological and Medical Sciences (KIRAMS) at Seoul, South Korea. The 100Mo(n,2n) reaction cross-section as a function of neutron energy was also calculated theoretically by using the computer code TALYS-1.8 and EMPIRE-3.2 Malta. The experimental results are in close agreement with the theoretical values from TALYS-1.8. However, the present data at the neutron energy of 21.9 MeV is slightly lower and at 26.5 MeV is higher than the values from EMPIRE-3.2 Malta.
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Acknowledgements
The authors would like to express their sincere thanks to the staff of the MC-50 Cyclotron in the KIRAMS for the excellent operation and their support during the experiment. This research was partly supported by the National Research Foundation of Korea through a grant provided by the Ministry of Science, ICT &Future Planning (NRF-2017R1D1A1B03030484) and by the National R&D Program through the Dong-nam Institute of Radiological and Medical Sciences (50496-2018). One of the authors (H. Naik) was supported by the Korean Brain Pool Program (No. 171S-1-3-1786) of Korean Federation of Science and Technology Societies (KOFST).
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Gopalakrishna, A., Kim, G.N., Naik, H. et al. Measurement of 99Mo production cross-section from the 100Mo(n,2n) reaction with quasi monoenergetic neutron based on the 9Be(p,n) reaction. J Radioanal Nucl Chem 316, 561–569 (2018). https://doi.org/10.1007/s10967-018-5832-2
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DOI: https://doi.org/10.1007/s10967-018-5832-2