Phenomenological approach to prediction of scintillation yield in mixed crystals

Author

Sidletskiy, O. ; Gektin, A. ; Grinyov, B. ; Belsky, A.

Author_Institution

Inst. for Scintillation Mater., Kharkiv, Ukraine

fYear

2014

fDate

26-30 May 2014

Firstpage

243

Lastpage

244

Abstract

Behavior of light yield in wide range of inorganic scintillation crystals formed by isovalent substitution of anions or cations is summarized. The correlations between improvement of light yield in mixed crystals, and the ratios of ionic radii and atomic weights of the substituted atoms, as well as the bandgap difference between the components of mixed crystal, have been analyzed. It is presumed that non-monotonous dependence of light yield on components ratio in mixed scintillators is called by modulation of energy structure and limitation of carrier migration length due to spatial inhomogeneity in crystal. Phenomenological approach to prediction of light yield in mixed scintillation crystals has been proposed.

Keywords

crystal structure; energy gap; scintillation; atomic weights; bandgap; carrier migration length; energy structure modulation; inorganic scintillation crystals; ionic radii; isovalent anion substitution; isovalent cation substitution; mixed crystal components; nonmonotonous dependence; phenomenological approach; scintillation crystals; substituted atoms; Crystals; Nonhomogeneous media; Inorganic scintillators; Ionic radii; Light yield;

fLanguage

English

Publisher

ieee

Conference_Titel

Oxide Materials for Electronic Engineering (OMEE), 2014 IEEE International Conference on

Conference_Location

Lviv

Print_ISBN

978-1-4799-5960-0

Type

conf

DOI

10.1109/OMEE.2014.6912433

Filename

6912433