论文标题
将稀土离子掺入LU2SI2O7闪烁体晶体：电子顺磁共振和发光研究
Rare-earth ions incorporation into Lu2Si2O7 scintillator crystals: Electron paramagnetic resonance and luminescence study
论文作者
论文摘要
本工作报告了LU2SI2O7：PR和LU2SI2O7：pyrosiloce-pyrosilicate晶体的电子顺磁共振（EPR），光吸收，放射和光致发光（RL和PL）复杂研究的结果。在这两个晶体中，EPR光谱都证明了源自YB3+，ER3+，ND3+，DY3+，GD3+和V3+离子的特征信号，该信号存在于材料中，作为不受控制的杂质。已经对相应的光谱（GD3+除外）进行了详细分析，并且首次确定了luttium pyrosilicate中所有这些离子的G-和超细张量。 LU2SI2O7中的光吸收，RL和PL测量值：PR晶体仅存在特征性PR3+过渡。另外，观察到PR3+ -PR3+能量转移并通过实验确认。
The present work reports results of the electron paramagnetic resonance (EPR), optical absorption, radio- and photoluminescence (RL and PL) complex study of the Lu2Si2O7:Pr and Lu2Si2O7:Ce pyrosilicate crystals. In both crystals, the EPR spectra demonstrate the presence of characteristic signals originating from the Yb3+, Er3+, Nd3+, Dy3+, Gd3+ and V3+ ions existing in the material as uncontrolled impurities. The corresponding spectra (except for Gd3+) have been analysed in detail and g- and hyperfine tensors are determined for all these ions in the lutetium pyrosilicate for the first time. Optical absorption, RL and PL measurements in the Lu2Si2O7:Pr crystal demonstrated presence of only characteristic Pr3+ transitions. In addition, the Pr3+- Pr3+ energy transfer was observed and confirmed experimentally.
