Thermoluminescence kinetic parameters of Bi4Ge3O12 single crystals

In this work, we present a detailed kinetic study of the thermoluminescence of Bi4Ge3O12 (BGO) single crystals grown by the Czochralski technique. A single crystalline phase was confirmed through X-ray diffraction pattern analysis based on the Rietveld profile refinement method. The thermoluminescen...

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Bibliographic Details
Published inNuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Vol. 250; no. 1-2; pp. 390 - 395
Main Authors da Silva, Ronaldo Santos, Macedo, Zélia Soares, Martinez, André Luiz, Hernandes, Antonio Carlos, Giroldo Valerio, Mário Ernesto
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.09.2006
Subjects
BGO
Kinetic parameters
Single crystal
Thermoluminescence
78.70.−g
BGO
Kinetic parameters
78.60.Kn
Single crystal
Thermoluminescence
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Summary:In this work, we present a detailed kinetic study of the thermoluminescence of Bi4Ge3O12 (BGO) single crystals grown by the Czochralski technique. A single crystalline phase was confirmed through X-ray diffraction pattern analysis based on the Rietveld profile refinement method. The thermoluminescent (TL) glow curves were induced by UV or beta radiation and measured between 20°C and 200°C. The glow curves of BGO crystal presented two peaks at 61°C and 90°C for both kinds of radiation. The kinetic parameters, kinetic order (b), activation energy (E) and frequency factor (s), of the TL glow curves have been determined by four different methods. The lifetime of the peaks at room temperature was also determined and used to discuss the stability of the TL peaks at room temperature.
ISSN:0168-583X
1872-9584
DOI:10.1016/j.nimb.2006.04.144