Thermoluminescence dosimetry of rare earth doped calcium aluminate phosphors

被引：22

作者：

Madhukumar, K. ^{[1
]}

Babu, K. Rajendra

Prasad, K. C. Ajith

James, J.

Elias, T. S.

Padmanabhan, V.

Nair, C. M. K.

机构：

[1] Mahatma Gandhi Coll, Dept Phys, Thiruvananthapuram 695004, Kerala, India

[2] Reg Res Lab, Thiruvananthapuram 695019, Kerala, India

[3] Reg Canc Ctr, Thiruvananthapuram 695011, Kerala, India

来源：

BULLETIN OF MATERIALS SCIENCE | 2006年 / 29卷 / 02期

关键词：

photoluminescence; thermoluminescence; radiation dosimetry;

D O I：

10.1007/BF02704603

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The thermoluminescence (TL) properties of calcium aluminate (CaAl2O4) doped with different rare earth ions have been studied and their suitability for radiation dosimetry applications is discussed. It is observed that monocalcium aluminate doped with cerium is a good dosimeter having linear response up to about 4 kGy of radiation doses. Dopant concentration of 0.25 mol% cerium gives maximum TL emission. The well-defined single peak observed at 295 degrees C can be advantageously used for high temperature dosimetry applications.

引用

页码：119 / 122

页数：4

共 10 条

[1]

CLAUDE F, 1984, LUMINESCENCE ENCY IN

[2] Crystal structural control on surface topology and crystal morphology of normal spinel (MgAl2O4) [J].

Dekkers, R ;

Woensdregt, CF .

JOURNAL OF CRYSTAL GROWTH, 2002, 236 (1-3) :441-454

[3] CRYSTAL STRUCTURE OF CALCIUM MONOALUMINATE [J].

DOUGILL, MW .

NATURE, 1957, 180 (4580) :292-293

[4] Persistent luminescence of Eu2+ doped alkaline earth aluminates, MAl2O4:Eu2+ [J].

Hölsä, J ;

Jungner, H ;

Lastusaari, M ;

Niittykoski, J .

JOURNAL OF ALLOYS AND COMPOUNDS, 2001, 323 :326-330

[5] LUMINESCENCE OF CE-3+-SENSITIZED AND DY-3+-ACTIVATED ALUMINOBORATES, CA3AL6B8O24, BA3AL6B8O24 [J].

KUTTY, TRN .

MATERIALS RESEARCH BULLETIN, 1990, 25 (04) :485-493

[6] New long phosphorescent phosphor with high brightness, SrAl2O4:Eu2+,Dy3+ [J].

Matsuzawa, T ;

Aoki, Y ;

Takeuchi, N ;

Murayama, Y .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1996, 143 (08) :2670-2673

[7]

McKeever S.W.S., 1985, Thermoluminescence of Solids, DOI [10.1017/CBO9780511564994, DOI 10.1017/CBO9780511564994.004]

[8] Kinetics and mechanism of formation of monocalcium aluminate, CaAl2O4 [J].

Mohamed, BM ;

Sharp, JH .

JOURNAL OF MATERIALS CHEMISTRY, 1997, 7 (08) :1595-1599

[9]

NAMBI KSV, 1977, THERMOLUMINESCENCE U

[10] TRAPPING OF ELECTRONS BY H+ IN THE X-RAY STORAGE PHOSPHOR BA3(PO4)2-EU2+, LA-3+ [J].

SCHIPPER, WJ ;

HAMELINK, JJ ;

LANGEVELD, EM ;

BLASSE, G .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1993, 26 (09) :1487-1492

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