Title: Comparison of Dosimetry between Dynamic Wedge and Physical Wedge
Abstract: Objective:To compare the characteristic of dose curver between dynamic wedge and physical wedge.Methods:The Y1-IN direction 15°,30°,45°,60° of dynamic wedge and the IN direction 15°,30°,45°,60° of static wedge were measured with two-dimensional ion chamber array.And the fluence map of wedge field were got.The absolute dose value of 5 cm in depth of dynamic wedge and physical wedge were measured with dose1 meter.Results:The wedge curve of dynamic wedge and physical wedge were approximately the same in the condition of same wedge angle.The absolute dose value of dynamic wedge was 15% ~25% bigger than that of physical wedge in the condition of same depth and angle.Conclusion:The physical wedge can be completely replaced by dynamic wedge.This can improve working effeciency and utilization rate of machines.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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