Temporal modelling of beryllium oxide ceramics' real-time OSL for dosimetry with a superficial 140 kVp X-ray beam
| Autor: | Shahraam Afshar, Raghu Gowda, Enbang Li, Anatoly B. Rosenfeld, Alexandre M. Caraça Santos, Eva Bezak, Levi Madden |
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| Přispěvatelé: | Madden, Levi, Santos, Alexandre, Li, Enbang, Gowda, Raghu, Bezak, Eva, Afshar V, Shahraam, Rosenfeld, Anatoly |
| Rok vydání: | 2020 |
| Předmět: |
Ceramics
Materials science Optically stimulated luminescence Beryllium oxide Biophysics General Physics and Astronomy fibre optic dosimeter Radiation Dosage Signal 030218 nuclear medicine & medical imaging 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Optics Dosimetry Radiology Nuclear Medicine and imaging BeO ceramic Ceramic Radiometry Dosimeter dosimetry business.industry X-Rays General Medicine chemistry 030220 oncology & carcinogenesis visual_art visual_art.visual_art_medium Curve fitting Thermoluminescent Dosimetry Signal averaging optically stimulated luminescence Beryllium business |
| Zdroj: | Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB). 80 |
| ISSN: | 1724-191X |
| Popis: | A new analysis method for the rtOSL of BeO ceramics is presented, using temporal curve fitting of an expected rtOSL signal to measured rtOSL signals. The presented technique does not require heavy signal averaging to determine the OSL bleaching correction associated with the rtOSL method, reducing uncertainties in the post-correction rtOSL. The corrected rtOSL signal was demonstrated to be linear with dose, and dose-rate independent. The presented technique is expected to be applicable for many other dosimeters capable of the rtOSL technique. The presented technique achieved relative uncertainties in the corrected rtOSL between 3.4% and 6.5%. The initial measurements are promising, but uncertainties are required to be further improved upon before the technique can be used clinically. Refereed/Peer-reviewed |
| Databáze: | OpenAIRE |
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