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Measurement of Radiation Dose Emitted by 4×4 cm^2 and 10×10 cm^2 Aperture of Linear Accelerator
ISSN: 2149 - 1402
Publisher: author
Measurement of Radiation Dose Emitted by 4×4 cm^2 and 10×10 cm^2 Aperture of Linear Accelerator
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Science General
ARTICLE-FACTOR
1.3
Article Basics Score: 2
Article Transparency Score: 3
Article Operation Score: 2
Article Articles Score: 3
Article Accessibility Score: 2
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International Category Code (ICC):
ICC-1402
Publisher: Journal Of New Theory Naim Çağman
International Journal Address (IAA):
IAA.ZONE/214975271402
eISSN
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2149 - 1402
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Abstract
The amount of the beam emitted from a linear accelerator's head can be adjusted by changing the jaw intervals of multi-leaf collimator (MLC) system. One of the parameters that are effective in delivering the prescribed dose to the patient is also the gantry angle. In this study, the jaw intervals of the linear accelerator in the Oncology Unit of the Tokat Gaziosmanpaşa University Faculty of Medicine have been determined as 4×4 cm^2 and 10×10 cm^2. The radiation dose emitted for both conditions has measured for 6 MV and 15 MV photon beams at different gantry angles. The measurements are taken at gantry angles of 0^o, 90^o, 180^o, and 270^o. The highest dose rate value is obtained in 10×10 cm^2 jaw interval for 15 MV photon energy at 0^o gantry angle. Then, the percentages of change between dose rate values measured at different portal angles are calculated. The obtained results are evaluated, considering other studies in the litera...
