Evaluation of the applicability of MOSFET detectors in radiotherapy |
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| Institution: | 1. School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran;2. Center of Excellence for High-Performance Materials, University of Tehran, Tehran, Iran;3. Electrical and Computer Engineering, University of Utah, Salt Lake City, UT, USA;4. São Carlos Institute of Physics, University of São Paulo, São Carlos, SP, Brazil;5. Department of Materials Engineering, Center for Research, Technology, and Education in Vitreous Materials, Federal University of São Carlos, São Carlos, SP, Brazil |
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| Abstract: | MOSFET detectors of 1 mVcGy−1 sensitivity were tested for the accuracy of absorbed dose measurements in radiation therapy with the use of photon and electron beams. Before a detector was used in the study, several calibration coefficients were determined to allow for different factors affecting its operation. Then, the detector exposure response was compared with the dose calculated in the anthropomorphic phantom by the Monaco and MasterPlan treatment planning systems. MOSFET detectors were placed inside the phantom during the irradiation. Three different plans for thorax and pelvis areas were studied. The paper presents the differences between planned and MOSFET measured doses delivered to the selected target areas using conventional and IMRT techniques. |
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| Keywords: | MOSFET detectors Dose Treatment planning systems |
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