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Targets withstanding high beam power for production of  68 Ge by proton irradiation of Ga were developed using electrodeposition of Ga/Ni alloy (70/30%) on thick Cu backings. Cross sections for reactions, induced by protons (up to 36MeV) and deuterons (up to 50MeV), producing γ-emitting radioisotopes with half-lives longer than 2 h were measured in a stacked-foil irradiation using thin Ga/Ni targets produced with this technique. Excitation functions for  68,69 Ge are discussed, relative to the monitor reactions  nat Cu(p, x) 62 Zn or  nat Al(d, x) 24,22 Na. The results are compared to the scarce literature values. From derived thick target yields, optimal energy domain and batch yields for  68 Ge production were calculated and contamination (from  69 Ge and  71 Ge) is discussed. A PC-controlled, automated dissolution and separation chemistry set-up for delivery of nca  69 Ge was developed (yield about 90%) and implemented in an industrial system ready to be mounted in a hot cell.

68 Ge/ 68 Ga production revisited: excitation curves, target preparation and chemical separation – purification