Prompt isothermal decay of thermoluminescence in MgB4O7:Dy, Na and LiB4O7:Cu, In dosimeters
Само за регистроване кориснике
2016
Чланак у часопису (Објављена верзија)
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According to standard delocalized kinetic models of thermoluminescence (TL), when an irradiated sample is held at a high temperature T, the isothermal TL signal will decay with a characteristic thermal decay constant A which depends strongly on the temperature T. This prediction of standard delocalized kinetic theory is investigated in this paper by studying two TL dosimeters, MgB4O7:Dy, Na and LiB4O7:Cu, In (hereafter MBO and LBO correspondingly). In the case of LBO it was found that the thermal decay constant A of the main dosimetric TL peak follows exactly the predictions of standard delocalized kinetic theory. Furthermore, the thermal activation energy of the main peak evaluated by the isothermal decay method is in full agreement with values obtained from initial rise and glow curve fitting methods. However, in the case of MBO it was found that the thermal decay constant A varies little with the isothermal decay temperature T. In order to explain these unusual results for MBO, the ...TL glow curves and isothermal decay curves were analyzed using analytical expressions derived recently from a radiative tunneling recombination model. Based on the different behavior of the two TL dosimeters, it is suggested that the isothermal decay of TL at high temperatures can be used to discriminate between radiative delocalized recombination and radiative localized recombination processes. (C) 2015 Elsevier Ltd. All rights reserved.
Кључне речи:
Thermoluminescence / Isothermal thermoluminescence / Lambert W function / TL-OSL dosimetry / Tunneling recombinationИзвор:
Radiation Measurements, 2016, 84, 15-25Издавач:
- Elsevier
DOI: 10.1016/j.radmeas.2015.11.002
ISSN: 1350-4487
WoS: 000369464200003
Scopus: 2-s2.0-84949490433
Колекције
Институција/група
VinčaTY - JOUR AU - Kitis, George AU - Polymeris, George S. AU - Sfampa, I. K. AU - Prokić, Miloš AU - Meric, Niyazi AU - Pagonis, V. PY - 2016 UR - https://vinar.vin.bg.ac.rs/handle/123456789/926 AB - According to standard delocalized kinetic models of thermoluminescence (TL), when an irradiated sample is held at a high temperature T, the isothermal TL signal will decay with a characteristic thermal decay constant A which depends strongly on the temperature T. This prediction of standard delocalized kinetic theory is investigated in this paper by studying two TL dosimeters, MgB4O7:Dy, Na and LiB4O7:Cu, In (hereafter MBO and LBO correspondingly). In the case of LBO it was found that the thermal decay constant A of the main dosimetric TL peak follows exactly the predictions of standard delocalized kinetic theory. Furthermore, the thermal activation energy of the main peak evaluated by the isothermal decay method is in full agreement with values obtained from initial rise and glow curve fitting methods. However, in the case of MBO it was found that the thermal decay constant A varies little with the isothermal decay temperature T. In order to explain these unusual results for MBO, the TL glow curves and isothermal decay curves were analyzed using analytical expressions derived recently from a radiative tunneling recombination model. Based on the different behavior of the two TL dosimeters, it is suggested that the isothermal decay of TL at high temperatures can be used to discriminate between radiative delocalized recombination and radiative localized recombination processes. (C) 2015 Elsevier Ltd. All rights reserved. PB - Elsevier T2 - Radiation Measurements T1 - Prompt isothermal decay of thermoluminescence in MgB4O7:Dy, Na and LiB4O7:Cu, In dosimeters VL - 84 SP - 15 EP - 25 DO - 10.1016/j.radmeas.2015.11.002 ER -
@article{ author = "Kitis, George and Polymeris, George S. and Sfampa, I. K. and Prokić, Miloš and Meric, Niyazi and Pagonis, V.", year = "2016", abstract = "According to standard delocalized kinetic models of thermoluminescence (TL), when an irradiated sample is held at a high temperature T, the isothermal TL signal will decay with a characteristic thermal decay constant A which depends strongly on the temperature T. This prediction of standard delocalized kinetic theory is investigated in this paper by studying two TL dosimeters, MgB4O7:Dy, Na and LiB4O7:Cu, In (hereafter MBO and LBO correspondingly). In the case of LBO it was found that the thermal decay constant A of the main dosimetric TL peak follows exactly the predictions of standard delocalized kinetic theory. Furthermore, the thermal activation energy of the main peak evaluated by the isothermal decay method is in full agreement with values obtained from initial rise and glow curve fitting methods. However, in the case of MBO it was found that the thermal decay constant A varies little with the isothermal decay temperature T. In order to explain these unusual results for MBO, the TL glow curves and isothermal decay curves were analyzed using analytical expressions derived recently from a radiative tunneling recombination model. Based on the different behavior of the two TL dosimeters, it is suggested that the isothermal decay of TL at high temperatures can be used to discriminate between radiative delocalized recombination and radiative localized recombination processes. (C) 2015 Elsevier Ltd. All rights reserved.", publisher = "Elsevier", journal = "Radiation Measurements", title = "Prompt isothermal decay of thermoluminescence in MgB4O7:Dy, Na and LiB4O7:Cu, In dosimeters", volume = "84", pages = "15-25", doi = "10.1016/j.radmeas.2015.11.002" }
Kitis, G., Polymeris, G. S., Sfampa, I. K., Prokić, M., Meric, N.,& Pagonis, V.. (2016). Prompt isothermal decay of thermoluminescence in MgB4O7:Dy, Na and LiB4O7:Cu, In dosimeters. in Radiation Measurements Elsevier., 84, 15-25. https://doi.org/10.1016/j.radmeas.2015.11.002
Kitis G, Polymeris GS, Sfampa IK, Prokić M, Meric N, Pagonis V. Prompt isothermal decay of thermoluminescence in MgB4O7:Dy, Na and LiB4O7:Cu, In dosimeters. in Radiation Measurements. 2016;84:15-25. doi:10.1016/j.radmeas.2015.11.002 .
Kitis, George, Polymeris, George S., Sfampa, I. K., Prokić, Miloš, Meric, Niyazi, Pagonis, V., "Prompt isothermal decay of thermoluminescence in MgB4O7:Dy, Na and LiB4O7:Cu, In dosimeters" in Radiation Measurements, 84 (2016):15-25, https://doi.org/10.1016/j.radmeas.2015.11.002 . .