Journal of Radiation Safety and Measurement

Journal of Radiation Safety and Measurement

Determination of MgSO4:Cu thermoluminescence kinetic parameters by use of different method in gamma irradiation

Document Type : Original Article

Authors
Fatemeh Almasifard 1
Mostafa Zahedifar 2, 3
Ehsan Sadeghi 2, 3
1 Physics Department, University of Tabriz, Tabriz, Iran
2 Physics Department, University of Kashan, Kashan, Iran
3 Institute of Nanoscience and Nanotechnology, University of Kashan, Kashan, Iran
10.22052/rsm.2024.255061.1068
Abstract
The thermoluminescence kinetic parameters of MgSO4:Cu microcrystalline was obtained by various methods. These parameters are kinetic order (b), activation energy (E) and frequency factor (s). Deconvolution, Isothermal decay, Various heating rate and Initial rise are the methods that were used in this survey. For obtaining kinetic order of each peak, Deconvolution and Isothermal decay methods were used. In Deconvolution method Im, Tm and number of peaks are the input of the program, the first and second was determined by the shape of each peak, the third was obtained by Tm-Tstop method. Three different methods: Deconvolution, various heating rate and Initial rise was applied to calculate activation energies. Frequency factor or probability of escape for each peak was calculate by Various heating rate method.
Keywords
Thermoluminescence dosimetry
Kinetic parameters
Copper doped magnesium sulphate
Decovolution
Tm-Tstop method
Isothermal decay
Various heating rate
Initial rise
  1. A. J. J. Bos. Theory of thermoluminescence. Radiat. Meas. 41 (2007) 45-56.
  2. R. Chen, S. McKeever. Theory of Thermoluminescence and Related Phenomena. World Scientific Publishing Co. Pte. Ltd., Singapore, 1997.
  3. L. Strauss, M. Hajek. Review of methods for determining glow peak kinetics parameters of thermoluminescence dosimeters. AIAU 27605, 2007.
  4. J. T. Randall, M. H. F. Wilkins. Phosphorescence and electron traps I, The study of trap distribution. Proc. R. Soc. A 184 (1945) 366-389.
  5. G. F. J. Garlick, A. F. Gibson. The electron trap mechanism of luminescence in sulfide and silicate phosphors. Proc. Phys. Soc. 60 (1948) 574-590.
  6. C. E. May, J. A. Partridge. Thermoluminescence kinetics of alfa-irradiated alkali halides. J. Chem. Phys. 40 (1964) 1401-1409.
  7. M. Zahedifar, F. Almasifard, E. Sadeghi, S. Harooni, M. Kashefi Biroon. Thermoluminescence dosimetry properties and kinetic analysis of MgSO4:Dy microcrystalline prepared by solid state method. Radiat. Meas. 103 (2017) 26-32.
  8. M. Zahedifar. Investigation of Thermoluminescence Dosimeters Kinetic Parameters. MS Thesis, Tehran University, 1991.
  9. D. L. Luo, Q. Tang, C. X. Zhang. Defect complexes in RE3+-doped magnesium sulphate phosphors. Radiat. Protect. Dosimetry 119 (1-4) (2006) 57-61.
  10. C. X. Zhang, L. Chen, Q. Tang, D. Luo, Z. Qiu. Emission spectra of MgSO4:Dy, MgSO4:Tm and MgSO4:Dy,Mn phosphors. Radiat. Meas. 32 (2000) 123–128.
  11. R. S. Kher, A. K. Apadhyay, S. K.Gupta, S. J. Dhoble, M. S. K. Khokhar. Luminescence characterization of gamma-ray-irradiated rare-earth doped BaSO4 and MgSO4 phosphors. Radiat. Meas. 46 (2011) 1372-1375.
  12. F. Almasifard, M. zahedifar, E. Sadeghi, M. Kashefi Biroon. Investigation of Thermoluminescence characteristics of Magnesium sulfate doped with Copper in gamma irradiation and calculation of its kinetic parameters with deconvolution method. Radiat. Safety Measurement 8 (3) (2020) 47-52.
  13. H. G. Balian, N. W. Eddy. Figure of merit FOM, and improved criterion over the normalized chisquard test for assessing goodness-of-fit of gamma ray spectra peaks. Nucl. Instrum. Methods 145 (1977) 389-395.
  14. N. S. Rawat, M. S. Kulkarni, D. R. Mishra, B. C. Bhatt, C. M. Sunta, S. K. Gupta, D. N. Sharma. Use of initial rise method to analyze a general-order kinetic thermoluminescence glow curve. Nucl. Instrum. Methods Phys. Res. B 267 (2009) 3475-3479.