The paper is devoted to the study of the excitation capture efficiency of rare-earth ions emission levels upon electron-beam irradiation in well-known scintillation materials. The method is based on cathodoluminescent rise rate dependence on the electron beam current. Electron probe microanalysis was used to determine the composition of the samples. The technique allowed us to quantify the excitation capture efficiency for three emitting levels of rare-earth ions in Y₂SiO₅:Ce³⁺,Tb³⁺, to determine the energy transfer between high energy levels in Tm³⁺ and Cr³⁺ ions in Y₃Al₅O₁₂ matrix, and to study the effect of crystalline matrix perfection on the excitation capture efficiency of Eu³⁺ energy levels in Y₃Al₅O₁₂:Eu³⁺. It was shown that the excitation capture efficiency coefficient may differ in orders of magnitude for various energy levels of one ion.

该论文致力于研究众所周知的闪烁材料中电子束辐照后稀土离子发射能级的激发捕获效率。该方法基于依赖于电子束电流的阴极发光上升率。电子探针微量分析用于确定样品的组成。该技术使我们能够量化 Y ₂ SiO ₅ :Ce ³⁺ ,Tb ^{3+ 中}稀土离子三种发射水平的激发捕获效率，以确定 Tm ³⁺和 Cr ^{3+ 中}高能级之间的能量转移Y ₃ Al ₅ O _{12 中的}离子矩阵，并研究结晶矩阵完善对 Eu ³⁺能级在 Y ₃ Al ₅ O ₁₂ :Eu ^{3+ 中}的激发捕获效率的影响。结果表明，对于一种离子的不同能级，激发捕获效率系数可能在数量级上不同。