ESR study of phosphorus-related defects in irradiated LiF:Mg,Cu,P and related phosphors

被引：9

作者：

Gundurao, T. K.

Moharil, S. V. ^{[1
]}

机构：

[1] Nagpur Univ, Dept Phys, Nagpur 440010, Maharashtra, India

[2] Indian Inst Technol, RSIC, Bombay 400076, Maharashtra, India

来源：

RADIATION MEASUREMENTS | 2007年 / 42卷 / 01期

关键词：

thermoluminescence dosimetry; LiF; Mg; Cu; P; ESR; thermoluminescence mechanism; lattice defects; TLD phosphor;

D O I：

10.1016/j.radmeas.2006.06.004

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：

ESR results on the irradiated LiF:Mg,Cu,P are reported. A new defect centre was found. A comparative study of centres formed in various lithium phosphates allowed us to identify the defect centre in LiF:Mg,Cu,P as (PO4)(2-) radical. The (PO4)(2-) centres decay in the same temperature range as the main dosimetry peak of LiF:Mg,Cu,P. These findings are very important for understanding the mechanism of TL in LiF:Mg,Cu,P phosphor. (c) 2006 Elsevier Ltd. All rights reserved.

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页码：35 / 42

页数：8

相关论文

共 28 条

[1]

Atkins P. W., 1967, STRUCTURE INORGANIC

[2] EFFECTIVE CO-DOPANTS FOR CASO4-DY AND CASO4-TM PHOSPHORS [J].

ATONE, MS ;

MOHARIL, SV ;

GUNDURAO, TK .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1995, 28 (06) :1263-1267

[3] Influence of concentration of magnesium on the dose response and LET-dependence of TL efficiency in LiF:Mg,Cu,P (MCP-N) detectors [J].

Bilski, P ;

Budzanowski, M ;

Olko, P ;

Waligorski, MPR .

RADIATION MEASUREMENTS, 1998, 29 (3-4) :355-359

[4] THE STRUCTURE, ELECTRON RESONANCE AND OPTICAL SPECTRA OF TRAPPED CO3- AND NO3 [J].

CHANTRY, GW ;

HORSFIELD, A ;

MORTON, JR ;

WHIFFEN, DH .

MOLECULAR PHYSICS, 1962, 5 (06) :589-599

[5] An electron energy loss spectroscopy (EELS) study of thermal effects in LiF:Mg,Cu,P phosphors [J].

Chen, TC ;

Qian, M ;

Stoebe, TG .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1999, 11 (29) :L341-L347

[6] Role of copper in LiF:Mg,Cu,P thermoluminescent phosphors [J].

Chen, TC ;

Stoebe, TG .

RADIATION PROTECTION DOSIMETRY, 1998, 78 (02) :101-106

[7] Optical and thermoluminescence properties of LiF:Cu, LiF:Mg,Cu and LiF:Mg,Cu,P single crystals [J].

Chernov, V ;

Mironenko, S ;

Rogalev, B ;

Bos, AJJ ;

de Haas, JTM ;

Delgado, A .

RADIATION MEASUREMENTS, 1998, 29 (3-4) :365-372

[8] Defect clusters and thermoluminescence in LiF crystals [J].

Davidson, AT ;

Kozakiewicz, AG ;

Wilkinson, DJ ;

Comins, JD .

JOURNAL OF APPLIED PHYSICS, 1999, 86 (03) :1410-1414

[9] GROUND-STATES OF MOLECULES .38. MNDO METHOD - APPROXIMATIONS AND PARAMETERS [J].

DEWAR, MJS ;

THIEL, W .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1977, 99 (15) :4899-4907

[10] Correlated ESR, PL and TL studies on copper activated thermoluminescence dosimetry phosphors [J].

Gundurao, TK ;

Sarwade, JR ;

Moharil, SV .

RADIATION EFFECTS AND DEFECTS IN SOLIDS, 1996, 138 (1-2) :177-184