Scintillation properties like photoelectron yield and light yield of Ce 3 + -doped YAlO 3 and mixed Lu x (RE) 1 - x AlO 3 (RE=Y 3 + and Gd 3 + ) perovskite crystals are presented. The photoelectron yields increase almost linearly with γ-ray energy but a small non-linearity is observed around 40keV. Scintillation and spectroscopic properties like UV or X-ray excited emission, laser excited emission, excitation and absorption spectra and photo- and scintillation decay of the different crystals are compared. The influence of intrinsic absorption and reflecting tape on the yields are discussed. Selected YAlO 3 :Ce showed the highest light yield of 25,000phels/MeV and an energy resolution of 4.5% for 662keV γ-radiation. The γ-ray linear absorption coefficient increases with Lu content and that of LuAlO 3 :Ce is almost 10 times higher than that of YAlO 3 :Ce.