Fig. 4: Scintillation time profiles (spectrally unresolved, excited by nanosecond soft X-ray pulse).
From: Gd-admixed (Lu,Gd)AlO3 single crystals: breakthrough in heavy perovskite scintillators

The sharp peak from 350–400 ns is an experimental artifact. Solid lines are the convolutions of the instrumental response and four-exponential function with the parameters in Table 1.