Thermoluminescent response of CaSO4:Eu,Ag detectors in 90Sr/90Y beta radiation beam
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The results of the thermoluminescent (TL) response of the CaSO4:Eu,Ag detectors in the 90Sr/90Y beams of the Beta Secondary Standard 2 system of the Calibration Laboratory of IPEN (LCI/IPEN) are presented. The thermoluminescent glow curves were obtained from doses between 30 mGy and 500 mGy. The detectors showed a good reproducibility of the thermoluminescent response. The calculated calibration factor was (1.166 ± 0.024) x10-3mGy/a.u. and the factor determined by linear fitting was (1.120 ± 0.014) x10-3mGy/a.u., showing a difference of only 3.9%. The lower limit of detection was (4.96 ± 0.06) mGy. The detectors presentedan appropriate sensitivity for 90Sr/90Y beta radiation. Preliminary results showed suitable dosimetric characteristics for the establishment of a transfer system for beta radiation dosimetry of 90Sr/90Y beams.
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POLO, IVON O.; JUNOT, DANILO O.; NICOLUCCI, PATRICIA; CALDAS, LINDA. Thermoluminescent response of CaSO4:Eu,Ag detectors in 90Sr/90Y beta radiation beam. Nucleus, v. 68, p. 32-35, 2021. Disponível em: http://repositorio.ipen.br/handle/123456789/32389. Acesso em: 30 Dec 2025.
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