• Published : 2009.12.30


In this paper, we used computerized glow curve deconvolution (CGCD) software with several models for the simulation of a TL glow curve which was used for analysis. By using the general approximation plus model, parameters values of the glow curve were analyzed and compared with the other models parameters (general approximation, mixed order kinetics, general order kinetics). The LiF:Mg,Cu,Si and the LiF:Mg,Cu,P material were used for the glow curve analysis. And we based on figure of merits (FOM) which was the goodness of the fitting that was monitored through the value between analysis model and TLD materials. The ideal value of FOM is 0 which represents a perfect fit. The main glow peak makes the most effect of radiation dose assessment of TLD materials. The main peak of the LiF:Mg,Cu,Si materials has a intensity rate 80.76% of the whole TL glow intensity, and that of LiF:Mg,Cu,P materials has a intensity rate 68.07% of the whole TL glow intensity. The activation energy of LiF:Mg,Cu,Si was analyzed as 2.39 eV by result of the general approximation plus(GAP) model. In the case of mixed order kinetics (MOK), the activation energy was analyzed as 2.29 eV. The activation energy was analyzed as 2.38 eV by the general order kinetics (GOK) model. In the case of LiF:Mg,Cu,P TLD, the activation energy was analyzed as 2.39 eV by result of the GAP model. In the case of MOK, the activation energy was analyzed as 2.55 eV. The activation energy was analyzed as 2.51 eV by the GOK model. The R value means different ratio of retrapping-recombination. The R value of LiF:Mg,Cu,Si TLD main peak analyzed as $1.12\times10^{-6}$ and $\alpha$ value analyzed as $1.0\times10^{-3}$. The R of LiF:Mg,Cu,P TLD analyzed as $7.91\times10^{-4}$, the $\alpha$ value means different ratio of initial thermally trapped electron density-initial trapped electron density (include thermally disconnected trap electrons density). The $\alpha$ value was analyzed as $9.17\times10^{-1}$ which was the difference from LiF:Mg,Cu,Si TLD. The deep trap electron density of LiF:Mg,Cu,Si was higher than the deep trap electron density of LiF:Mg,Cu,P.


  1. Yossian D and Horowitz YS. Mixed-order and general-order kinetics applied to synthetic glow peaks and to peak 5 in LiF:Mg,Ti (TLD-100). Radiation Measurements 1997;27(3):465-471
  2. Chung KS, Choe HS, Lee JI, and Kim JL. A new method for numerical analysis of thermoluminescence glow curve. Radiation Measurements 2007;42(4):731-734
  3. Chung KS, Park CY, Lee JD, Choe HS, Chang IS, Lee JI and Kim JL. A new computer program for thermoluminescence glow curve deconvolution by the general approximation. LED2008 (in press)
  4. Chen R and Kirsh Y. Analysis of Thermally Stimulated processes. Pergamon Press, New York, 1981:32-54
  5. McKeever SWS. Thermoluminescence of solid. Cambridge; Solid State Science Series, 1985:41-49
  6. Maghrabi M, Al-jundi J and Arafah DE. Mixed- and General-order kinetics applied to selected thermoluminescence glow curves. Radiation Protection Dosimetry 2008;130(3):291-299
  7. Oh MA. A Study on a New Analysis Method for Thermoluminescence Glow-curve by the General Approximation Model. Gyeongsang national university; 2009:29-30
  8. Lee JI, Yang JS, Kim JL, Pradhan AS, Lee JD, Chung KS and Choe HS. Dosimetric characteristics of LiF:Mg,Cu,Si thermoluminescent materials. Applied Physics Letters 2006;89(9):094110
  9. Pradhan AS, Lee JI, Kim JL, Chung KS, Choe HS and Lim KS. TL glow curve shape and response of LiF:Mg,Cu,Si-Effect of heating rate. Radiation Measurements 2008;43(2):361-364
  10. Mariotti F, Uleri G, and Fantuzzi E. Batch homogeneity of LiF(Mg,Cu,P)-GR200 and LiF(Mg,Cu,P)-MCP-NS TL detectors for use as extremity dosemeters at ENEA personal dosimetry service. Radiation Protection Dosimetry 2006;120(1):283-288
  11. Delgado A, GomezRos JM, Furetta C, and Bacci C. Isothermal Decay of Glow Peaks in LiF:Mg,Cu,P. Radiation Protection Dosimetry 1993;47(1):49
  12. Rundo J, Fellinger J, Tawil RA, Velbeck KJ. Characterization of the new Harshaw 4500 TLD reader. Radiation Protection 1996:4-21