Radioluminescence and thermoluminescence of X-Ray irradiated ferroelectrics

Abstract

Initial data are reported for X-ray induced luminescence and thermoluminescence from a number of compounds of interest for electro-optic applications. The materials used were LiNbO₃, LiTaO₃, Ba₂NaNb₅O₁₅ and LiIO₃. In general the signals were weak with the strongest features of both radio-luminescence and thermoluminescence occurring in the temperature range 30 to 100 K. The techniques have revealed a number of defect states in each of the materials.