Abstract
The paper addresses the recent progress in study of light yield behavior in scintillators based on solid solutions (mixed crystals), which are among the brightest known scintillators. Following the prior work [O. Sidletskiy et al., Phys. Status Solidi A 2014, 211, 2384], the extended phenomenological analysis of the correlations between light yield behavior and physical properties of mixed crystals (band gaps of the components, ionic radii, and atomic weights of the substitutional atoms) is carried out. The trend to light yield enhancement is notable in systems with the substitution of atoms in two non‐equivalent crystallographic sites in the lattice leading to formation of planes and columns enriched with one of the substitutional atoms. This evidences an important role of nanoscale spatial inhomogeneity (domains or clusters) in scintillation process in mixed scintillators. A roadmap of search for new bright scintillators is proposed basing on the established trends.
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