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|Title:||Characterisation of a real-time fibre-coupled beryllium oxide (BeO) luminescence dosimeter in X-ray beams|
Afshar Vahid, S.
|Citation:||Radiation Measurements, 2013; 53:1-7|
|Publisher:||Pergamon-Elsevier Science Ltd|
|Alexandre M. Caraça Santos, Mohammad Mohammadi, Johan Asp, Tanya M. Monro, Shahraam Afshar V.|
|Abstract:||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.|
Fibre optic dosimetry
|Rights:||Copyright © 2013 Elsevier Ltd.|
|Appears in Collections:||Aurora harvest|
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