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Highlights: Photoluminescence rise time is studied in two scintillators: PWO and GAGG:Ce This study is encouraged by the necessity to find novel detection methods enabling a sub-10-ps time resolution in scintillation detectors and is focused on the exploitation of fast luminescence rise front. Time-resolved photoluminescence (PL) spectroscopy and thermally stimulated luminescence techniques have been used to study two promising scintillators: self-activated lead tungstate (PWO, PbWO4) and Ce-doped gadolinium aluminum gallium garnet (GAGG, Gd3Al2Ga3O12). A sub-picosecond PL rise time is observed in PWO, while longer processes in the PL response in GAGG:Ce are detected and studied. The mechanisms responsible for the PL rise time in selfactivated and doped scintillators are under discussion.

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Polycrystalline scintillator YAG:Ce was 3D-printed using stereophotolithography and sintered; it has shown light yield 60% higher than YAG:Ce single crystal.