RECENT DEVELOPMENTS IN ZINC-OXIDE TARGET CHEMISTRY

Zinc oxide targets irradiated with high energy protons at the Los Alam os Meson Physics Facility (LAMPF) contain a number of radioactive spal lation products in quantities large enough to warrant recovery. This p aper describes methods for recovering Be-7, Sc-46 and V-48 from such t argets and offers suggestions On possible ways to recover additional i sotopes. The proposed methods are based on traditional precipitation a nd ion exchange techniques, are readily adaptable to hot cell use, and produce no hazardous waste components. The products are obtained in m oderate to high yields and have excellent radionuclidic purity.