Research ArticleOpen AccessGoogle Scholar indexed
Activation Energy of Modified Peak Shape Equations
CONACYT-Centro de Nanociencias y Nanotecnología, UNAM, Ensenada B.C., Mexico
Retired from Physics Department of Rome University, Rome, Italy
- 1 CONACYT-Centro de Nanociencias y Nanotecnología, UNAM, Ensenada B.C., Mexico
- 2 Retired from Physics Department of Rome University, Rome, Italy
World Journal of Nuclear Science and Technology·Volume 07 (2017)·Pages 274–283·Published 9 August 2017·DOI10.4236/wjnst.2017.74021
Copy link · social · email
Abstract
The aim of this paper is to give some simplified expressions related to the peak shape method. The modified equations have been used to calculate the activation energy ( E ) of commercial thermoluminescent dosimeters (TLD), as well as of ZnO thermoluminescent material produced in laboratory; the values so determined have been compared to the values obtained using the classical expressions of the peak shape method. The modified equations proposed are as a function of peak shape parameters or the peak temperature at the maximum. This expression could be useful to obtain approximated E values in the case of complex glow curves as well, when the peaks are not well resolved but the peak temperature at the maximum may be easily determined.
KeywordsThermoluminescenceGeometrical ParametersActivation EnergyPeak-Shape Method
- Furetta, C. and Weng, P.-S. (1998) Operational Thermoluminescence Dosimetry. World Scientific, Singapore, 260. https://doi.org/10.1142/3789
- Kitai, A. (2008) Luminescent Materials and Applications. John Wiley & Sons, Ltd., New York. https://doi.org/10.1002/9780470985687
- McKeever, S.W.S. (2011) Thermoluminescence Dosimetry (TLD). In: Thermolumin Solids, Cambridge University Press, Cambridge, 205-252. https://doi.org/10.1017/CBO9780511564994
- Azorín, J., Furetta, C. and Scacco, A. (1993) Preparation and Properties of Thermoluminescent Materials. Physica Status Solidi (A), 138, 9-46. https://doi.org/10.1002/pssa.2211380102
- Randall, J.T. and Wilkins, M.H.F. (1945) The Phosphorescence of Various Solids. Proceedings of the Royal Society of London, Series A, Mathematical and Physical Sciences, 184, 347LP-364LP. https://doi.org/10.1098/rspa.1945.0023
- Garlick, G.F.J. and Gibson, A.F. (1948) The Electron Trap Mechanism of Luminescence in Sulphide and Silicate Phosphors. Proceedings of the Physical Society, 60, 574-590. https://doi.org/10.1088/0959-5309/60/6/308
- May, C.E. and Partridge, J.A. (1964) Thermoluminescent Kinetics of Alpha-Irradiated Alkali Halides. The Journal of Chemical Physics, 40, 1401-1409. https://doi.org/10.1063/1.1725324
- McKeever, S.W.S., Moscovitch, M. and Townsend, P.D. (1995) Thermoluminescence Dosimetry Materials: Properties and Uses. Journal of Radiological Protection, 16, No. 4.
- Chen, R. and Winer, S.A.A. (1970) Effects of Various Heating Rates on Glow Curves. Journal of Applied Physics, 41, 5227-5232. https://doi.org/10.1063/1.1658652
- Furetta, C. (2003) Handbook of Thermoluminescence. World Scientific, Singapore. https://doi.org/10.1142/5167
- Gómez Ros, J.M. and Kitis, G. (2002) Computerised Glow Curve Deconvolution using General and Mixed Order Kinetics. Radiation Protection Dosimetry, 101, 47-52. https://doi.org/10.1093/oxfordjournals.rpd.a006029
- Grossweiner, L.I. (1953) A Note on the Analysis of First-Order Glow Curves. Journal of Applied Physics, 24, 1306. https://doi.org/10.1063/1.1721152
- Chen, R. (1969) On the Calculation of Activation Energies and Frequency Factors from Glow Curves. Journal of Applied Physics, 40, 570-585. https://doi.org/10.1063/1.1657437
- Lushchik, C.B. (1956) The Investigation of Trapping Centers in Crystals by the Method of Thermal Bleaching. Soviet Physics—JETP, 3, 390-399.