CREATION OF PHOTOSTIMULABLE CENTERS IN BAFBR-EU-2+ SINGLE-CRYSTALS BY VACUUM-ULTRAVIOLET RADIATION

被引：82

作者：

RUTER, HH

VONSEGGERN, H

REININGER, R

SAILE, V

机构：

[1] SIEMENS AG,RES LABS,W-8520 ERLANGEN,GERMANY

[2] DESY,HAMBURGER SYNCHROTRONSTRAHLUNGSLAB,W-2000 HAMBURG 52,GERMANY

[3] LOUISIANA STATE UNIV,DEPT PHYS & ASTRON,BATON ROUGE,LA 70803

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 65卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.65.2438

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Several experiments were performed in order to understand the creation and readout mechanisms of photostimulable (PS) centers in BaFBr:Eu2+ single crystals. PS centers can be efficiently created starting from 6.7 eV, i.e., the minimal energy required to excite the first valence exciton. This exciton relaxes to an e-Vk (Br2-) pair. The relaxation of such a defect in the neighborhood of Eu2+ yields a PS center, namely, an F-H (Br2-) pair. An additional decay channel of the e-Vk pair results in Eu2+* emission due to the energy match between the emission of this pair and an absorption band of Eu2+. © 1990 The American Physical Society.

引用

页码：2438 / 2441

页数：4

共 14 条

[1] IMAGING PLATE ILLUMINATES MANY FIELDS [J].