Kinetic analysis of thermoluminescence glow curves in feldspar: evidence for a continuous distribution of energies

Vasilis Pagonis 1 , P. Morthekai 2 , and George Kitis 3
  • 1 Physics Department, McDaniel College, Westminster, MD, 21157, USA
  • 2 Luminescence Dating Laboratory, CSIR-National Geophysical Research Institute, Hyderabad, 500 007, India
  • 3 Nuclear Physics Laboratory, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece


The thermoluminescence (TL) glow curves from feldspars have been the subject of numerous studies, because of their importance in luminescence dating and dosimetry. This paper presents new experimental TL glow curves in a plagioclase feldspar, measured using the T max-T stop technique of glow curve analysis. Kinetic analysis of the experimental results is carried out for a freshly irradiated sample, as well as for a sample which has undergone optical treatment using infrared light for 100 s at 50°C. Application of the initial rise method of analysis indicates that the TL signals from both samples can be characterized by a continuous distribution of energy levels. By subtracting the TL glow curves measured at successive T stop values, a series of TL glow curves is obtained which are analyzed using the empirical general order kinetics. It is found that all TL glow curves obtained by this subtractive procedure can be described accurately by the same general order parameter b ∼1.7. In a second attempt to analyze the same TL glow curves and possibly extract information about the underlying luminescence process, the shape of TL glow curves is analyzed using a recently proposed physical kinetic model which describes localized electronic recombination in donor-acceptor pairs. Within this model, recombination is assumed to take place via the excited state of the donor, and nearest-neighbor recombinations take place within a random distribution of centers. This recent model has been used recently to describe successfully several types of luminescence signals. This paper shows that it is possible to obtain good fits to the experimental data using either one of these two approaches.

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  • [1] Andersen MT, Jain M and Tidemand-Lichtenberg P, 2012. Red-IR stimulated luminescence in K-feldspar: single or multiple trap origin? Journal of Applied Physics 112: 043507, DOI 10.1063/1.4745018.

  • [2] Baril MR and Huntley DJ, 2003. Optical excitation spectra of trapped electrons in irradiated feldspars. Journal of Physics: Condensed Matter 15: 8011–8027, DOI 10.1088/0953-8984/15/46/017.

  • [3] Bøtter-Jensen L, Ditlefsen C and Mejdahl, V, 1991. Combined OSL (infrared) and TL studies of feldspars. International Journal of Radiation Applications and Instrumentation. Part D. Nuclear Tracks and Radiation Measurements 18(1–2): 257–263, DOI 10.1016/1359-0189(91)90120-7.

  • [4] Bøtter-Jensen L, McKeever SWS and Wintle A, 2003. Optically Stimulated Luminescence Dosimetry. Elsevier, Amsterdam.

  • [5] Chen R and Pagonis V, 2011. Thermally and Optically Stimulated Luminescence: A Simulation Approach. Chichester: Wiley and Sons.

  • [6] Chruścińska A, 2001. The fractional glow technique as a tool of investigation of TL bleaching efficiency in K-feldspar. Geochronometria 20: 21–30.

  • [7] Chruścińska A, Oczkowski HL and Przegiętka KR, 2001. The parameters of traps in K-feldspars and the TL bleaching efficiency: Geochronometria 20: 15–20.

  • [8] Clark RJ and Sanderson DCW, 1994. Photostimulated luminescence excitation spectroscopy of feldspars and Micas. Radiation Measurements 23(2–3): 641–646, DOI 10.1016/1350-4487(94)90113-9.

  • [9] Duller GAT, 1995. Infrared bleaching of the thermoluminescence of four feldspars. Journal of Physics D: Applied Physics 28(6): 1244–1258, DOI 10.1088/0022-3727/28/6/030.

  • [10] Guérin G, 2006. Some aspects of phenomenology and kinetics of high temperature thermoluminescence of plagioclase feldspars. Radiation Measurements 41(7–8): 936–941, DOI 10.1016/j.radmeas.2006.04.004.

  • [11] Grün R and Packman SC, 1994. Observations on the kinetics involved in the TL glow curves in quartz, K-feldspar and Na-feldspar mineral separates of sediments and their significance for dating studies. Radiation Measurements 23(2–3): 317–322, DOI 10.1016/1350-4487(94)90058-2.

  • [12] Hornyak WF, Chen R and Franklin A, 1992. Thermoluminescence characteristics of the 375°C electron trap in quartz. Physical Review B 46(13): 8036–8049, DOI 10.1103/PhysRevB.46.8036.

  • [13] Huntley DJ and Lamothe M, 2001. Ubiquity of anomalous fading in K-feldspars and the measurement and correction for it in optical dating. Canadian Journal of Earth Science 38(7): 1093–1106, DOI 10.1139/e01-013.

  • [14] Huntley DJ and Lian OB, 2006. Some observations on tunnelling of trapped electrons in feldspars and their implications for optical dating. Quaternary Science Reviews 25(19–20): 2503–2512, DOI 10.1016/j.quascirev.2005.05.011.

  • [15] Jain M and Ankjærgaard C, 2011. Towards a non-fading signal in feldspar: Insight into charge transport and tunnelling from time-resolved optically stimulated luminescence. Radiation Measure-ments 46(3): 292–309, DOI 10.1016/j.radmeas.2010.12.004.

  • [16] Jain M, Guralnik B and Andersen MT, 2012. Stimulated luminescence emission from localized recombination in randomly distributed defects. Journal of Physics: Condensed Matter 24: 385402, DOI 10.1088/0953-8984/24/38/385402.

  • [17] Kars RH, Poolton NRJ, Jain M, Ankjærgaard C, Dorenbos P and Wallinga J, 2013. On the trap depth of the IR-sensitive trap in Na- and K-feldspar. Radiation Measurements 59: 103–113, DOI 10.1016/j.radmeas.2013.05.002.

  • [18] Kitis G, Gomez-Ros JM and Tuyn JWN, 1998. Thermoluminescence glow-curve deconvolution functions for first, second and general orders of kinetics. Journal of Physics D: Applied Physics 31: 2636, DOI 10.1088/0022-3727/31/19/037.

  • [19] Kitis G and Pagonis V, 2013. Analytical solutions for stimulated luminescence emission from tunneling recombination in random distributions of defects. Journal of Luminescence 137: 109–115, DOI 10.1016/j.jlumin.2012.12.042.

  • [20] Li S-H, Tso MYW and Wong NW, 1997. Parameters of OSL traps determined with various heating rates. Radiation Measurements 27(1): 43–47, DOI 10.1016/S1350-4487(96)00137-0.

  • [21] Li B and Li S-H, 2013. The effect of band-tail states on the thermal stability of the infrared stimulated luminescence from K-feldspar. Journal of Luminescence 136: 5–10, DOI 10.1016/j.jlumin.2012.08.043.

  • [22] Morthekai P, Thomas J, Padian MS, Balaram V and Singhvi AK, 2012. Variable range hopping mechanism in band-tail states of feldspars: A time-resolved IRSL study. Radiation Measurements 47(9): 857–863, DOI 10.1016/j.radmeas.2012.03.007.

  • [23] Murray AS, Buylaert JP, Thomsen KJ and Jain M, 2009. The effect of preheating on the IRSL signal from feldspar. Radiation Measurements 44(5–6): 554–559, DOI 10.1016/j.radmeas.2009.02.004.

  • [24] Pagonis V, Morthekai P, Singhvi AK, Thomas J, Balaram V, Kitis G and Chen R, 2012. Time-resolved infrared stimulated luminescence signals in feldspars: Analysis based on exponential and stretched exponential functions. Journal of Luminescence 132(9): 2330–2340, DOI 10.1016/j.jlumin.2012.04.020.

  • [25] Panzeri L, Martini M and Sibilia E, 2012. Effects of thermal treatments on luminescence features of three natural feldspars. Radiation Measurements 47(9): 877–882, DOI 10.1016/j.radmeas.2012.03.021.

  • [26] Poolton NRJ, Bøtter-Jensen L and Johnsen O, 1995. Thermo-optical properties of optically stimulated luminescence in feldspars. Radiation Measurements 24(4): 531–534, DOI 10.1016/1350-4487(94)00114-G.

  • [27] Poolton NRJ, Ozanyan KB, Wallinga J, Murray AS and Bøtter-Jensen L, 2002a. Electrons in feldspar II: a consideration of the influence of conduction band-tail states on luminescence processes. Physics and Chemistry of Minerals 29(3): 217–225, DOI 10.1007/s00269-001-0218-2.

  • [28] Poolton NRJ, Wallinga J, Murray AS, Bulur E and Bøtter-Jensen L, 2002b. Electrons in feldspar I: on the wave function of electrons trapped at simple lattice defects. Physics and Chemistry of Minerals 29(3): 210–216, DOI 10.1007/s00269-001-0217-3.

  • [29] Poolton NRJ, Kars RH, Wallinga J and Bos AJJ, 2009. Direct evidence for the participation of band-tails and excited-state tunnelling in the luminescence of irradiated feldspars. Journal of Physics: Condensed Matter 21: 485505, DOI 10.1088/0953-8984/21/48/485505.

  • [30] Strickertsson K, 1985. The thermoluminescence of potassium feldspars — Glow curve characteristics and initial rise measurements. Nuclear Tracks and Radiation Measurements 10(4–6): 613–617, DOI 10.1016/0735-245X(85)90066-3.

  • [31] Visocekas R, 1985. Tunneling radiative recombination in labradorite: its association with anomalous fading of thermoluminscence. Nuclear Tracks and Radiation Measurements 10(4–6): 521–529, DOI 10.1016/0735-245X(85)90053-5.

  • [32] Visocekas R, Tale V, Zink A, Spooner NA and Tale I, 1996. Trap Spectroscopy and TSL in Feldspars. Radiation Protection Dosimetry 66: 391–394.

  • [33] Visocekas R and Guérin G, 2006. TL dating of feldspars using their far-red emission to deal with anomalous fading. Radiation Meas-urements 41(7–8): 942–947, DOI 10.1016/j.radmeas.2006.04.023.

  • [34] Wintle AG, 1977. Detailed study of a thermoluminescent mineral exhibiting anomalous fading. Journal of Luminescence 15(4): 385–393, DOI 10.1016/0022-2313(77)90037-0.


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