http://hdl.handle.net/20.500.12128/3295
Tytuł: | Analysis of dosimetric peaks of MgB4O7:Dy (40% Teflon) versus LiF:Mg,Ti TL detectors |
Autor: | Paluch-Ferszt, Monika Kozłowska, Beata De Souza, Susana Oliveira De Souza, Luiza Freire Souza, Divanizia Nascimento |
Słowa kluczowe: | MgB4O7:Dy; LiF:Mg,Ti; Thermoluminescent detectors |
Data wydania: | 2016 |
Źródło: | Nukleonika, 2016, iss. 1, s. 49-52 |
Abstrakt: | Magnesium tetraborate doped with dysprosium (MgB4O7:Dy) is known as a good thermoluminophor for personal dosimetry of gamma ray and X-ray radiation because of its high sensitivity and close tissue equivalence. This material can be produced by different routes. The sintered pastilles of magnesium tetraborate mixed with Teflon (40%) used in this work were manufactured at the Federal University of Sergipe, Department of Physics by the solid-state synthesis. Magnesium tetraborate was already used for high-dose dosimetry, exhibiting linearity for a wide range of doses. In this work, the authors examined its main characteristics prior to potential use of detectors in everyday dosimetry, comparing this material to a widely used LiF:Mg,Ti phosphor. The following tests influencing dosimetric peaks of MgB4O7:Dy:Dy were presented: (1) the shape of the glow curves (2) annealing conditions and post-irradiation annealing and its influence for background of the detectors, (3) the choice of the heating rates at the read-out and (4) the threshold dose, that is, the lowest possible dose to be measured. Simil ar tests were performed with LiF:Mg,Ti detectors, produced and widely used in Poland. The results were compared and discussed. |
URI: | http://hdl.handle.net/20.500.12128/3295 |
DOI: | 10.1515/nuka-2016-0011 |
ISSN: | 0029-5922 |
Pojawia się w kolekcji: | Artykuły (WNŚiT) |
Plik | Opis | Rozmiar | Format | |
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Paluch-Ferszt_Analysis_of_dosimetric_peaks_of_MgB4O7.pdf | 578,15 kB | Adobe PDF | Przejrzyj / Otwórz |
Uznanie autorstwa - użycie niekomercyjne, bez utworów zależnych 3.0 Polska Creative Commons