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Silva AMB, Rodrigues DS, Antonio PL, Junot DO, Caldas LVE, Souza DN. Investigation of dosimetric properties of CaSO 4:Mn phosphor prepared using slow evaporation route. Appl Radiat Isot 2023; 199:110874. [PMID: 37285758 DOI: 10.1016/j.apradiso.2023.110874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 04/03/2023] [Accepted: 05/24/2023] [Indexed: 06/09/2023]
Abstract
The objective of this work was to investigate the luminescent properties of CaSO4:Mn synthesized by slow evaporation route. The crystalline structure, morphology, thermal and optical properties of the phosphors were characterized by X-ray diffraction analysis (XRD), Scanning electron microscopy (SEM), photoluminescence (PL) and thermogravimetric analysis (TGA). Moreover, using thermoluminescence (TL) and optically stimulated luminescence (OSL) techniques, the dosimetric properties of the phosphors, such as emission spectra, glow curve reproducibility, dose-response linearity, fading of the luminescent signal, variation of the TL intensity with the heating rate, OSL decay curves, correlation between TL and OSL emissions and minimum detectable dose (MDD) were comprehensively investigated. For dosimetric analyses, the samples were irradiated with doses from 169 mGy to 10 Gy. The emission band fits with the characteristic line of the Mn2+ emission features, ascribed to 6A1→4T1 transition. CaSO4:Mn pellets present a TL glow curve with a single typical peak centered around 494 nm, an OSL decay curve with predominance of a fast decay component, and a MDD on the order of mGy. The luminescent signals showed to be linear and reproducible in the studied dose range. The trapping centers located between 0.83 eV and 1.07 eV were revealed for different heating rates in the TL study. The high TL sensitivity of CaSO4:Mn was proven when comparing with commercially available dosimeters. The luminescent signals exhibit a smaller fading than described in the literature for CaSO4:Mn produced by other methods.
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Affiliation(s)
- Anderson M B Silva
- Departamento de Física, Universidade Federal de Sergipe, Marechal Rondon, S/N, 49100-000, São Cristovão, SE, Brazil.
| | - Daniel S Rodrigues
- Departamento de Física, Universidade Federal de Sergipe, Marechal Rondon, S/N, 49100-000, São Cristovão, SE, Brazil
| | - Patrícia L Antonio
- Instituto de Pesquisas Energéticas e Nucleares, Comissão Nacional de Energia Nuclear, IPEN/CNEN-SP, Av. Prof. Lineu Preste, 2242, 05508-000, São Paulo, SP, Brazil
| | - Danilo O Junot
- Instituto de Física Armando Dias Tavares, Universidade do Estado do Rio de Janeiro UERJ, Rua São Francisco Xavier, 524, 20550-013, Rio de Janeiro, RJ, Brazil
| | - Linda V E Caldas
- Instituto de Pesquisas Energéticas e Nucleares, Comissão Nacional de Energia Nuclear, IPEN/CNEN-SP, Av. Prof. Lineu Preste, 2242, 05508-000, São Paulo, SP, Brazil
| | - Divanizia N Souza
- Departamento de Física, Universidade Federal de Sergipe, Marechal Rondon, S/N, 49100-000, São Cristovão, SE, Brazil
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Silva AM, Souza LF, Antonio PL, Junot DO, Caldas LV, Souza DN. Effects of manganese and terbium on the dosimetric properties of CaSO4. Radiat Phys Chem Oxf Engl 1993 2022. [DOI: 10.1016/j.radphyschem.2022.110207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Asfora VK, Antonio PL, Gonçalves JA, Bueno CC, de Barros VS, Oliveira CN, Caldas LV, Khoury HJ. Evaluation of TL and OSL responses of CaF2:Tm for electron beam processing dosimetry. RADIAT MEAS 2021. [DOI: 10.1016/j.radmeas.2020.106512] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Souza LF, Novais AL, Antonio PL, Caldas LV, Souza DN. Luminescent properties of MgB4O7:Ce,Li to be applied in radiation dosimetry. Radiat Phys Chem Oxf Engl 1993 2019. [DOI: 10.1016/j.radphyschem.2019.108353] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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de Oliveira LN, do Nascimento EO, Andreeta MR, Antonio PL, Caldas LV. Characterization of lithium diborate, sodium diborate and commercial soda-lime glass exposed to gamma radiation via linearity analyses. Radiat Phys Chem Oxf Engl 1993 2019. [DOI: 10.1016/j.radphyschem.2018.06.031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Antonio PL, Oliveira RA, Khoury HJ, Caldas LV. Evaluation of the thermally and optically stimulated response of an Italian Obsidian irradiated in 60Co beams. Radiat Phys Chem Oxf Engl 1993 2019. [DOI: 10.1016/j.radphyschem.2018.06.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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de Oliveira LN, Schimidt F, Antonio PL, Andreeta MR, Caldas LV. Lithium diborate glass for high-dose dosimetry using the UV-Vis and FTIR spectrophotometry techniques. RADIAT MEAS 2017. [DOI: 10.1016/j.radmeas.2017.05.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Antonio PL, Oliveira RA, Khoury HJ, Caldas LV. Study of the luminescent behavior of Spectrolite + Teflon pellets in 90Sr + 90Y beams. RADIAT MEAS 2016. [DOI: 10.1016/j.radmeas.2016.02.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Junot DO, Couto dos Santos MA, Antonio PL, Caldas LV, Souza DN. Feasibility study of CaSO4:Eu, CaSO4:Eu,Ag and CaSO4:Eu,Ag(NP) as thermoluminescent dosimeters. RADIAT MEAS 2014. [DOI: 10.1016/j.radmeas.2014.05.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Antonio PL, Xavier M, Caldas LV. Böhm extrapolation chamber: Study of its behavior in beta radiation fields at the Calibration Laboratory of IPEN. Radiat Phys Chem Oxf Engl 1993 2014. [DOI: 10.1016/j.radphyschem.2014.04.035] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Antonio PL, Oliveira ML, Caldas LVE. Calibration of the 90Sr+90Y ophthalmic and dermatological applicators with an extrapolation ionization minichamber. Appl Radiat Isot 2013; 85:11-3. [PMID: 24362457 DOI: 10.1016/j.apradiso.2013.10.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2012] [Revised: 09/10/2013] [Accepted: 10/10/2013] [Indexed: 10/25/2022]
Abstract
(90)Sr+(90)Y clinical applicators are used for brachytherapy in Brazilian clinics even though they are not manufactured anymore. Such sources must be calibrated periodically, and one of the calibration methods in use is ionometry with extrapolation ionization chambers. (90)Sr+(90)Y clinical applicators were calibrated using an extrapolation minichamber developed at the Calibration Laboratory at IPEN. The obtained results agree satisfactorily with the data provided in calibration certificates of the sources.
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Affiliation(s)
- Patrícia L Antonio
- Instituto de Pesquisas Energéticas e Nucleares, Comissão Nacional de Energia Nuclear, IPEN/CNEN-SP, Av. Prof. Lineu Prestes, 2242, 05508-000 São Paulo, SP, Brazil.
| | - Mércia L Oliveira
- Centro Regional de Ciências Nucleares, Comissão Nacional de Energia Nuclear, CRCN/CNEN, Av. Prof. Luis Freire, 200, 50740-540 Recife, PE, Brazil
| | - Linda V E Caldas
- Instituto de Pesquisas Energéticas e Nucleares, Comissão Nacional de Energia Nuclear, IPEN/CNEN-SP, Av. Prof. Lineu Prestes, 2242, 05508-000 São Paulo, SP, Brazil
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Sardar M, Souza DN, Tufail M, Caldas LVE, Antonio PL, Carvalho AB. TL behavior of topaz-glass composite in various irradiation fields. Health Phys 2013; 105:150-155. [PMID: 23799499 DOI: 10.1097/hp.0b013e31828cf924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Topaz is a natural hard silicate mineral that has the potential to be used as a thermoluminescent dosimeter (TLD). It is difficult to manufacture chips of topaz and problematic to use its powder as TLDs. Topaz-glass composite (in the form of pellets) can be made easily and applied for radiation dosimetry. To produce pellets of topaz-glass composite in 2:1 wt (%), topaz powder was combined with commercial glass. The pellets with 6 mm diameter and 1 mm thickness were sintered in a furnace at 900°C for 1 h. The composite pellets were irradiated with x-ray and gamma photons and alpha and beta particles. The pellets yielded two peaks in the glow curve; Peak 1 at temperature range 150-160°C and Peak 2 at 250-260°C. The intensity of Peak 2 rose linearly with the increase in absorbed dose. The intensity of Peak 2 was comparable with peaks for photons and beta irradiation but relatively low for alpha exposure. The reproducibility of the intensity of Peak 2 was within 5-8%. Two months after irradiation of the pellets, the fading of the intensity of Peak 2 was found to be about 7%. The topaz-glass composite can be used effectively and efficiently for dosimetry of alpha, beta, and gamma radiation.
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Affiliation(s)
- M Sardar
- Pakistan Institute of Engineering and Applied Sciences, Nilore, Islamabad 45650, Pakistan.
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Antonio PL, Oliveira ML, Caldas LVE. Thin CaSO4:Dy thermoluminescent dosimeters for calibration of 90Sr+90Y applicators. Appl Radiat Isot 2012; 70:790-3. [PMID: 22304964 DOI: 10.1016/j.apradiso.2012.01.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2010] [Revised: 01/05/2012] [Accepted: 01/05/2012] [Indexed: 10/14/2022]
Abstract
Clinical applicators are used in brachytherapy to treat superficial lesions of skin and eye. They should be periodically calibrated according to quality control programs and international recommendations. Thin CaSO(4):Dy thermoluminescent dosimeters were used to calibrate various applicators with a dermatological applicator as a reference. The obtained absorbed dose rates were compared with those quoted in their calibration certificates. Depth-dose curves were constructed for all the applicators. A mail dosimetry system was developed for calibration of clinical applicators.
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Affiliation(s)
- Patrícia L Antonio
- Instituto de Pesquisas Energéticas e Nucleares, Comissão Nacional de Energia Nuclear, Av. Prof. Lineu Prestes, 2242, 05508-000, São Paulo, SP, Brazil
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