Kinetic parameters of thermally stimulated light emission phenomenon in CaF2 doped with Tm3+ ions
Por:
González P.R., Cruz-Zaragoza E., Furetta C.
Publicada:
1 nov 2016
Categoría:
Radiation
Resumen:
The characterization of new materials thermoluminescent used in radiation dosimetry, require the determination of kinetic parameters, which are associated with the number and shape of the peaks which presents its glow curve, among the most important are: the activation energy, E, or depth of the traps, the frequency factor, s, and the kinetics order, b. These parameters are necessary to predict the stability of thermoluminescent information after irradiation of the material. In this work, we present the results obtained for the determination of kinetic parameters of Tm3+-doped CaF2, the methods used for the determination of kinetic parameters were; initial growth signal TL, General order Chen method, and Deconvolution of glow curve. The results showed that the glow curve of CaF2 presents three glow peaks, 492 K main peak and two smaller peaks, one at 430 K and another to 566 K. The dosimetric glow peak fits to the general-order kinetics model. © 2015 Elsevier Ltd
Filiaciones:
González P.R.:
Inst Nacl Invest Nucl, Carretera Mexico Toluca S-N, Ocoyoacac 52750, Estado De Mexic, Mexico
Instituto Nacional de Investigaciones Nucleares, Carretera México-Toluca S/N, Ocoyoacac, Estado de México C.P. 52750, Mexico
Cruz-Zaragoza E.:
Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, AP 70-543, Mexico City 04510, DF, Mexico
Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, A.P. 70-543, México D.F., 04510, Mexico
Furetta C.:
Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, AP 70-543, Mexico City 04510, DF, Mexico
Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, A.P. 70-543, México D.F., 04510, Mexico
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