SOUZA, DIVANIZIA N.MELO, ADEILSON P.OLIVEIRA, MARIA G.CALDAS, LINDA V.E.2014-07-152014-07-302014-07-152014-07-302007SOUZA, DIVANIZIA N.; MELO, ADEILSON P.; OLIVEIRA, MARIA G.; CALDAS, LINDA V.E. Dosimetric characterization of wollastonite-teflon composites. <b>Physica Status Solidi, C</b>, v. 4, n. 3, p. 1175-1178, 2007. DOI: <a href="https://dx.doi.org/10.1002/pssc.200673869">10.1002/pssc.200673869</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/5195.1862-6351http://repositorio.ipen.br/handle/123456789/5195In this work, the thermoluminescent properties of pellets containing powdered Wollastonite embedded in Teflon were studied. The preliminary results using gamma rays from a 60Co source showed linearity at the calibration curve between 0.5 Gy and 10 Gy. The main TL peaks are located at 125, 200 and 245 °C. The repeatibility of TL response presented a maximum coefficient of variation of 6.3%. The material can be used in successive irradiation-reading-annealing cycles without an appreciable change in its sensitivity. The calibration curve for a gamma source (60Co) up to 20 kGy and the minimum detection limits were obtained. The results show that these Wollastonite-Teflon pellets present possibilities for use as TL dosimeters.1175-1178closedAccessannealingcalcium silicatescalibrationcomposite materialsgamma dosimetryglow curvemev range 01-10pelletspowdersresponse functionssensitivitysilicate mineralsteflonthermoluminescencethermoluminescent dosimetryArtigo de periódico3410.1002/pssc.200673869https://orcid.org/0000-0002-7362-2455