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本文介绍了用于测量电子直线加速器剂量的电离室和胶片探测器。用这些探测器测量了电子直线加速器在方型和圆形野情况下的几种重要的剂量分布，如百分深度剂量、组织最大比、离轴比等。文中介绍了用这些探测器测量这些参数时的特点。
This article describes the ionization chamber and film detectors used to measure electron linac doses. These detectors were used to measure several important dose distributions of the electron linear accelerator in square and round fields, such as percent depth dose, maximum tissue ratio, and off-axis ratio. The characteristics of these detectors when measuring these parameters are described.