Abstract
Summary Spectrum averaged cross sections for the 64Zn(n,p)64Cu, 67Zn(n,p)67Cu and 89Y(n,p)89Sr reactions were measured using a 14MeV d(Be) neutron source. In each case a clean radiochemical separation was performed and the radioactivity of the product was determined via high-resolution γ-ray spectrometry or anticoincidence β - counting. The cross sections are three to five times higher than with a fission neutron spectrum. It is postulated that at an intense fast spectral neutron source, e.g. a spallation source, it would be advantageous to use an (n,p) reaction: GBq amounts of 64Cu and 67Cu could be produced in one hour irradiation and of 89Sr in about one day irradiation.
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