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Measurement of the Proton-induced Reaction Cross-sections of natZr(p,xn)86,87m,87(m+g),88Y up to 40 MeV

We measured the production cross-sections of 86,87m,87(m+g),88Y radioisotopes for proton-induced reactions on natural zirconium by using a stacked-foil activation technique in the energy range of 4-40 MeV at the MC50 cyclotron of the Korean Institute of Radiological and Medical Sciences. The activation method and the stacked-foil technique using the high-resolution HPGe gamma spectrometry were applied to determine the production cross-sections. The beam current was determined by the monitor reactions natCu(p,x)62Zn and 27Al(p,x)22,24Na. This work reports new data for the above reactions. The results were also compared with ALICE-IPPE model calculations compiled in MENDL-2P file. This experiment is in partial agreement with model calculations. The optimum energy range for the production of 86Y is 40 – 30 MeV The highest yield of 86Y amounts to 33.37 MBq/μAh over this energy range and the levels of the 87Y, 87mY and 88Y impurities to 2.3, 26.55 and 0.33 %, respectively at EOB. The natZr(p,x) process may be a suitable route for the production of the medically important radioisotope 86Y.