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Radiation Protection Dosimetry 2004 111(1):21-25; doi:10.1093/rpd/nch354
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Radiation Protection Dosimetry Vol. 111, No. 1 © Oxford University Press 2004; all rights reserved

Study on quality control parameters of a TLD system for individual monitoring

J. G. Alves*, R. Montezuma, O. Margo and L. Santos

Instituto Tecnológico e Nuclear, Departamento de Protecção Radiológica e Segurança Nuclear, Estrada Nacional 10, 2686-953 Sacavém, Portugal

* Corresponding author: jgalves{at}itn.mces.pt

This work intends to identify and follow up quality control parameters important for the general improvement of our thermoluminescence dosemeter (TLD) system for Individual Monitoring that is currently preparing its accreditation according to the EN ISO/IEC 17025 Standard. A retrospective analysis of the readers' start-up tests revealed an eventual variation of parameters, like the high voltage, which may affect the light collecting system, and hence the TL dose results. This was investigated and although the high voltage requires a careful look, the stability and reproducibility of the TLD system was ascertained by the results of quality control procedures. As a consequence of this work, the start-up procedure was modified and the warning levels used for the start-up daily tests of the readers were derived from a more realistic approach.


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J. G. Alves, J. N. Abrantes, O. Margo, S. Rangel, and L. Santos
Long-term stability of a TLD-based individual monitoring system
Radiat Prot Dosimetry, September 1, 2006; 120(1-4): 289 - 292.
[Abstract] [Full Text] [PDF]

Home page
 Radiat Prot DosimetryHome page
J. G. Alves, J. N. Abrantes, and S. Rangel
Implications of the high voltage induced variation on TL readings
Radiat Prot Dosimetry, September 1, 2006; 120(1-4): 293 - 297.
[Abstract] [Full Text] [PDF]


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