Production of 186gRe Medical Isotope on the Proton Beam of Cyclotron C18/18

The production of the therapeutic 186g Re radioisotope by proton-induced nat W(p,xn) reaction at the cyclotron C18/18 was investigated. The cyclotron is located at the A. Alikhanyan National Science Laboratory (Yerevan Physics Institute). The excitation function of the reaction in the proton energy range from the reaction threshold up to 18 MeV was measured. The measurements were carried out by the stack activation method followed by spectrometric analysis on the high purity germanium detector (HPGe). The activation of the obtained medical isotope 186g Re was determined. The current experimental results are compared with theoretical calculations performed by TALYS 1.95 and EMPIRE 3.2 codes, as well as with the other available experimental data. It has been shown the possibility of production of the above-mentioned radionuclide on the cyclotron C18/18 in the amount required for medical purposes using an enriched target.