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• proton and deuteron beams • 43,44,47 Sc radioisotopes • radioisotope production • Thick Target Yield • generated impurities level Highlights • The prospective medical scandium radioisotopes, 43 Sc, 44g Sc, 44m Sc and 47 Sc were produced using proton and deuteron beams. • Isotopically enriched and natural targets of CaCO 3 and TiO 2 were used. • The Thick Target Yields (TTY) and generated radioactive impurities were determined for a proton energy range of 28-2 MeV. • Using a proton beam and the most enriched target isotopes the highest determined TTY were about 400, 800 and 60 MBq/µAh for 43 Sc, 44g Sc and 47 Sc,respectively.

Changes of optical properties of cerium doped YAG single crystals (0.05, 0.1, 0.2 at. % Ce, and 0.2 at. % Ce "+" 0.1at. % Mg) after thermal annealing at 1400 o C in air or 1200 o C in N 2 +H 2 mixture and subsequent γ or proton irradiation were investigated. For initial Ce 3+ contents <0.05 at. % an increase and for Ce 3+ contents >0,05 at. % a decrease of the final Ce 3+ concentration was observed. Appropriate changes in luminescence of Ce: YAG crystals were observed as a consequence of dopant concentration changes. They were small after γ-irradiation of Ce: YAG crystals with Ce 3+ content >0,05at.% and reached about 100% after γ-irradiation of crystals with Ce 3+ content <0.05 at. %.

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