Characterisation of a real-time fibre-coupled beryllium oxide (BeO) luminescence dosimeter in X-ray beams
| Autor: | Mohammad Mohammadi, Tanya M. Monro, Johan Asp, V Shahraam Afshar, Alexandre M. Caraça Santos |
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| Přispěvatelé: | Caraça Santos, Alexandre M, Mohammadi, Mohammad, Asp, Johan, Monro, Tanya M, Afshar V, Shahraam |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Radiation
Dosimeter Materials science Optically stimulated luminescence Beryllium oxide Analytical chemistry BeO Dose profile Radioluminescence chemistry.chemical_compound radioluminescence chemistry visual_art Ionization chamber visual_art.visual_art_medium fibre optic Ceramic Luminescence Instrumentation Nuclear chemistry |
| Popis: | For the first time the feasibility of using beryllium oxide (BeO) ceramics as a fibre-coupled radioluminescent dosimeter is investigated. BeO ceramic exhibits both radioluminescence (RL) and optically stimulated luminescence (OSL), and has the potential to be a near tissue equivalent alternative to Al2O3:C. A BeO fibre-coupled radioluminescence dosimeter is demonstrated and characterised for 6 MV X-rays and superficial X-ray energies, 150 kVp and 120 kVp. Based on the results, we demonstrate the capability of the RL BeO FOD for accurate and reproducible dose measurements with a linear dose rate and dose response. It has also been found that the percentage depth dose curves for 6 MV agreed with ion chamber measurements to within 2%, except in the build up region. For the 150 kVp and 120 kVp photon beams, the depth dose measurements agreed with ion chamber measurements to within 2.5% and 4%, respectively. Refereed/Peer-reviewed |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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