A scintillator combination made of halide perovskite material contains at least one ABX3 halide perovskite, an activator made from matrix material, a charge compensator that can help the activator enter perovskite lattice and all reaction products. The radiation detector of the scintillator, a correlated method for detecting high-energy radiation and a method for producing an activated halide-perovskite-based scintillator crystal are also described.