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Fission neutron spectrum averaged cross sections of some threshold reactions like ( n , p ), ( n , α) and ( n ,2 n ) on zinc were measured using the activation technique in combination with radiochemical separations and high-resolution γ-ray spectroscopy. Special attention was paid to the formation of  64 Cu  via  the  64 Zn(n,p)  64 Cu reaction since  64 Cu labeled compounds are potentially important radiopharmaceuticals. At a fast neutron flux density of 7.5 × 10 13  cm -2 s -1  and using a 100% enriched  64 Zn target, 35 GBq activity of no-carrier-added  64 Cu per batch could be produced. The process seems to be interesting from the medical application viewpoint, if a cyclotron is not available. A fast neutron source, on the other hand, would lead to significantly higher yield of  64 Cu.

radiochimica acta

Measurement of fission neutron spectrum averaged cross sections of some threshold reactions on zinc: small-scale production of no-carrier-added  64 Cu in a nuclear reactor