乳腺X射线机管电压介入式研究

Nuclear Electronics & Detection Technology(2015)

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Abstract
为了更准确的描述管电压,本实验通过以二极管探头、数字电路为基础的非介入式方法,对医用乳腺X射线机管电压进行了测量,并以此结果刻度了介入式分压箱;同时,对采样数据进行高斯分布处理,剔除3σ以外的数据,对管电压纹波重新计算并与定义值进行了比较.采用非介入式方法对管电压进行测量,结果与仪器示值的差别小于1%,管电压纹波小于8%,达到了建立乳腺X射线参考辐射场的要求.
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