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Experimental investigations have been carried out on the production of a promising therapeutic radionuclide  67 Cu via the  67 Zn(n,p) 67 Cu,  68 Zn(n,x) 67 Cu, and  68 Zn(γ,p) 67 Cu reaction routes. Natural zinc metal foils were irradiated with 14.1 MeV neutrons and bremsstrahlung of end-point energy 15 MeV. Radioactivity levels of  67 Cu and other radioisotopes co-produced were determined by the quantification of photo-peaks by off-line γ-ray spectrometry. No carrier added  67 Cu was separated from the irradiated zinc by solvent extraction. Yields &gt;90% and high levels of radionuclidic purity were achieved. These studies indicate that the growth and development of intense fast neutron sources and photonuclear technology, will possibly aid in the sustained supply of  67 Cu.

Production, separation and supply prospects of 67 Cu with the development of fast neutron sources and photonuclear technology