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Lozano I, Roman-Lopez J, Tenopala J, Piña-González H, Guzman-Castañeda J, Diaz-Gongora J. Thermoluminescence properties and identification of irradiated cocoa beans during long-term storage. Appl Radiat Isot 2023; 191:110532. [DOI: 10.1016/j.apradiso.2022.110532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 10/19/2022] [Accepted: 10/24/2022] [Indexed: 11/25/2022]
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Mahmood MM, Kakakhel MB, Wazir-Ud-Din M, Hayat S, Ahmad K, Ur-Rehman S, Siddique MT, Masood A, Ul-Haq A, Mirza SM. Thermoluminescence (TL), kinetic parameters and dosimetric features of Pakistani limestone. Appl Radiat Isot 2022; 188:110357. [PMID: 35820299 DOI: 10.1016/j.apradiso.2022.110357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 07/03/2022] [Accepted: 07/04/2022] [Indexed: 11/02/2022]
Abstract
Thermoluminescence (TL), kinetic parameters and dosimetric features of Pakistani limestone (CaCO3) is reported in this study. Both compositional and structural analyses reveal that the material has a crystalline nature with rhombohedral structure and non-uniform crystallite size having major content of CaCO3. A powdered limestone sample of 30 mg is found to be the optimized weight for TL and other dosimetric studies. After irradiating the samples with a test dose of 100 Gy using a β source three composite glow peaks termed as P1, P2 and P3 are visible at 100, 230 and 330 °C respectively using a linear heating rate of 1 °C/s during the TL readout. The Coefficient of Variation (COV) is found to be about 4%. Kinetic parameters (i.e., frequency factor (f), activation energy (E), and the kinetic order (b)) are estimated using both first and second Order of kinetics using an in-house Computerized Glow Curve Deconvolution (GCD) software. The figure-of-merit (FOM) is found to be 2.12%. The distribution of continuum traps with activation energy in the range of 0.77-2.59 eV is observed in the kinetic parameter analysis of the glow peaks of the sample. The TL response in the dose range of 1-5 Gy (not reported previously) and linearity in the dose response in the dose range of 1-10 Gy is observed in samples of Pakistani limestone. The Minimum Detectable Dose (MDD) is 1.01 Gy clearly resembling the experimentally linear fitted results. After a fading study for a period of thirty days, only the first peak i.e., P1 majorly fades while no major change is observed in the amplitude of peaks P2 and P3. In addition, P1 is the main contributor fading by 92% within the first 24 h of irradiation while P2 fades by 30 %. However, P3 shows stability with a very minor fading of 0.05% within 24 h of irradiation. This study concludes that Pakistani limestone can be further assessed as a potential radiation dosimeter for various applications.
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Affiliation(s)
- M Masood Mahmood
- Department of Physics & Applied Mathematics, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad, 45650, Pakistan; Heath Physics Division, PINSTECH, Nilore, Islamabad, Pakistan
| | - M Basim Kakakhel
- Department of Physics & Applied Mathematics, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad, 45650, Pakistan.
| | - M Wazir-Ud-Din
- Department of Physics & Applied Mathematics, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad, 45650, Pakistan
| | - Sikander Hayat
- Department of Physics & Applied Mathematics, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad, 45650, Pakistan
| | - Khalil Ahmad
- Department of Physics & Applied Mathematics, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad, 45650, Pakistan
| | - Shakeel Ur-Rehman
- Department of Physics & Applied Mathematics, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad, 45650, Pakistan
| | - M Tariq Siddique
- Department of Physics & Applied Mathematics, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad, 45650, Pakistan
| | - Atif Masood
- Department of Medical Physics, KIRAN Hospital, Karachi, Pakistan
| | - Asadar Ul-Haq
- Department of Medical Physics, KIRAN Hospital, Karachi, Pakistan
| | - Sikander M Mirza
- Department of Physics & Applied Mathematics, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad, 45650, Pakistan
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Correcher V, Garcia-Guinea J, Boronat C, Gómez-Ros J. Radiation effect on the UV-green thermally stimulated luminescence emission of a natural Na-rich aluminosilicate. Radiat Phys Chem Oxf Engl 1993 2019. [DOI: 10.1016/j.radphyschem.2019.108383] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Dogan T. Comparison of the thermoluminescence kinetic parameters for natural alkali-rich aluminosilicates minerals. Appl Radiat Isot 2019; 149:174-181. [PMID: 31071552 DOI: 10.1016/j.apradiso.2019.04.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 04/25/2019] [Accepted: 04/26/2019] [Indexed: 12/01/2022]
Abstract
Natural alkali-rich aluminosilicates minerals from Harmancık/Bursa/Turkey and Kepsut/Balıkesir (Turkey) were characterised by X-ray diffractometry (XRD), X-ray fluorescence (XRF) and investigated the blue thermoluminescence (TL) emission of the samples. The TL glow curves exhibited a very complex structure that were analyzed via computerized glow curve deconvolution (CGCD), initial rise (IR) and variable heating rate (VHR) techniques. It could be appreciated how the kinetic parameters (trap depth -Ea-, kinetic order -b- and frequency factor -s- for each electron trap levels) were consistent regardless of the analytical method used.
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Affiliation(s)
- Tamer Dogan
- Cukurova University, Vocational School of Imamoglu, Department of Computer Technologies, 01700 Adana, Turkey.
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