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Preliminary study of lithium tetraborate doped with Cu and in for external dosimetry.
Appl. Radiat. Isot. 191:110533 (2023)
A potentially tissue-equivalent dosimeter based on lithium tetraborate co-doped with Cu and In was successfully synthesized in two steps melting process. Basic material properties were characterized using Differential scanning calorimetry, X-ray diffraction, and Fourier Transform Infrared Spectroscopy, the dosimetric properties using Thermoluminescence. The highest sensitivity was observed for dopant concentrations of 0.1% Cu and 0.5% In. Tmax-Tstop analysis revealed the existence of eight individual peaks in the composite TL glow curve, which was confirmed by computerized glow curve deconvolution. A linear dose-response was seen up to about 30 Gy, for higher doses saturation effects occurred. The minimum detectable dose was estimated at about 670 μGy. TL peaks, with peak temperature above 150 °C faded to values between 3.3 and 14.9% of the respective of initial values after 70 days storage.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
Dopants ; Dosimetric Properties ; Lithium Tetraborate ; Synthesis ; Thermoluminescence; Thermoluminescence; Radiotherapy
ISSN (print) / ISBN
0969-8043
e-ISSN
1872-9800
Zeitschrift
Applied Radiation and Isotopes
Quellenangaben
Band: 191,
Artikelnummer: 110533
Verlag
Elsevier
Verlagsort
The Boulevard, Langford Lane, Kidlington, Oxford Ox5 1gb, England
Nichtpatentliteratur
Publikationen
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Radiation Medicine (IRM)
Förderungen
Science and Technology Development Fund
Bundesministerium für Bildung und Forschung
Arab Republic of Egypt
Bundesministerium für Bildung und Forschung
Arab Republic of Egypt