Computerized glow curve deconvolution of thermoluminescent emission from polyminerals of Jamaica Mexican flower
Por:
Favalli A., Furetta C., Zaragoza E.C., Reyes A.
Publicada:
1 ene 2006
Resumen:
The aim of this work is to study the main thermoluminescence (TL) characteristics of the inorganic polyminerals extracted from dehydrated Jamaica flower or roselle (Hibiscus sabdariffa L.) belonging to Malvaceae family of Mexican origin. TL emission properties of the polymineral fraction in powder were studied using the initial rise (IR) method. The complex structure and kinetic parameters of the glow curves have been analysed accurately using the computerized glow curve deconvolution (CGCD) assuming an exponential distribution of trapping levels. The extension of the IR method to the case of a continuous and exponential distribution of traps is reported, such as the derivation of the TL glow curve deconvolution functions for continuous trap distribution. CGCD is performed both in the case of frequency factor, s , temperature independent, and in the case with the s function of temperature.
Filiaciones:
Favalli A.:
European Commission, Joint Research Centre, Institute for the Protection and Security of Citizens, TP800, Via E. Fermi, 21020, Ispra (VA), Italy
Furetta C.:
Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México UNAM, Circuito Exterior C.U., A.P. 70-543, México 04510 D.F., Mexico
Zaragoza E.C.:
Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México UNAM, Circuito Exterior C.U., A.P. 70-543, México 04510 D.F., Mexico
Reyes A.:
Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México UNAM, Circuito Exterior C.U., A.P. 70-543, México 04510 D.F., Mexico
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