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- W989619150 abstract "目的 对TomoTherapy HI-ART加速器剂量输出的稳定性进行检测和评价。 方法 利用A1SL电离室、矩形固体水模体与圆柱形固体水模体, 参照美国医学物理学会TG-148号报告, 对TomoTherapy HI-ART加速器质控规程中静态剂量输出、动态剂量输出、射线质稳定性进行检测, 并对结果进行分析。 结果 静态剂量输出结果偏差平均值为(-0.6±1.1)%, 有89.1%的数据在±2%的允许偏差范围之内, 数据分布无明显规律。动态剂量输出结果偏差平均值为(1.0±1.1)%, 有87.1%的数据在±2%的允许偏差范围之内。射线质较为稳定, 偏差平均值为(-0.01±1.26)%, 80%的结果在±1%的偏差范围之内, 96%的结果在±2%的允许偏差范围之内。 结论 TomoTherapy HI-ART加速器剂量输出稳定性略低于常规加速器, 剂量输出易发生波动, 因此每日对其输出量进行系统检测十分重要。" @default.
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- W989619150 date "2013-10-30" @default.
- W989619150 modified "2023-10-18" @default.
- W989619150 title "TomoTherapy HI-ART加速器剂量输出稳定性检测与评价" @default.
- W989619150 doi "https://doi.org/10.3969/j.issn.1674-9081.2013.04.012" @default.
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