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Surface dose and build-up region measurements with wedge filters for 6 and 18 MV photon beams |
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| Authors: | Hatice Bilge Nurdan Ozbek Murat Okutan Aydın Cakir Hilal Acar |
| Affiliation: | (1) Department of Radiation Oncology Medical Physics, Westmead Cancer Care Center, Westmead, NSW, 2145, Australia;(2) Department of Medical Physics, St George Cancer Care Center, Kogarah, NSW, Australia;(3) Center for Medical Radiation Physics, University of Wollongong, Wollongong, NSW, Australia |
| Abstract: | PurposeHigh-energy photons are most commonly used in radiotherapy to treat cancer. Wedge filters are required to obtain homogeneous dose distribution in the patient. Different wedge filter types create different surface doses. In this study, the effect of the virtual and physical wedge filters on the surface and build-up region doses was examined for 6- and 18-MV high-energy photon beams. |
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