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The Application of MatriXX in IMRT Dose Verification
Author(s): 
Pages: 2455-2459
Year: Issue:  2
Journal: Chinese Journal of Medical Physics

Abstract: 目的:通过研究IMRT注量图的空间频率,分析在IMRT剂量验证时,Matrixx的取样间隔(探头间距)能否满足Nyquist采样定理.材料与方法:任意选取10例IMRT,其中鼻咽癌6例,肺癌4例.采用IBA公司的Matrixx进行调强剂量验证,每个电离室的测量值得到一系列离散采样信号.分别分析单个子野和整个测量平面的空间频率.①单个子野:从Pinnacle3 v8.0治疗计划系统中导出单个子野通量...
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