Optical absorption of Tl+ ions in KBr1-xIx:TlI mixed crystals

被引：0

作者：

Eswaran, P. ^{[1
]}

Ravisankar, R. ^{[2
]}

Nagarajan, S. ^{[3
]}

机构：

[1] SMK Fomra Inst Technol, Dept Phys, Madras 603103, Tamil Nadu, India

[2] Govt Arts Coll, Dept Phys, Thiruvannamalai 606603, Tamil Nadu, India

[3] Pondicherry Engn Coll, Dept Phys, Pondicherry 605014, India

来源：

NUCLEAR SCIENCE AND TECHNIQUES | 2009年 / 20卷 / 04期

关键词：

F-centers; KBr1-xIx:TlI mixed Crystals; Optical absorption; Tl+ ions; Mixed halides; A-absorption band; ALKALI; IMPURITIES; BANDS; KCL; LUMINESCENCE; DEPENDENCE; CENTERS; HALIDES;

D O I：

暂无

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Optical absorption spectra of the mixed crystals of KBr1-xIx:Tl+ crystals studied at room temperature are reported. The absorption spectra indicated the appearance of additional bands on the low energy side of the Characteristic A, B and C absorption bands of KBr:Tl+ single crystals with increasing iodine composition. Comparing with earlier reports, the additional bands were attributed to the complex Tl+ centers in the mixed configuration surrounded by Br- and I- ions as nearest neighbors. The absorption spectra of gamma irradiated mixed crystals showed F band, which shifts towards low energy side with the composition of iodine ions in the mixed crystals.

引用

页码：208 / 218

页数：11

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