A Review on X-ray Excited Emission Decay Dynamics in Inorganic Scintillator Materials

Scintillator materials convert high-energy radiation into photons in the ultraviolet to visible light region for detection. In this review, advances X-ray emission dynamics of inorganic scintillators are presented, including halides (alkali-metal halides, alkaline-earth rare-earth oxy-halides, oxyorthosilicates, halide perovskites), oxides (binary oxides, complex post-transition metal oxides), sulfides, doped scintillators, and organic-inorganic hybrid scintillators. The origin scintillation is strongly correlated host material dopants. Current models presented describing decay lifetime materials, with emphasis on short-lived component. whole charge generation de-excitation process analyzed general, an essential role kinetics process. We highlighted three mechanisms cross luminescence emission, exitonic dopant-activated respectively. Factors regulating different centers controlling discussed.