在有侧向保护器情况下，侧向散射照射量有所减小，在与光轴垂直方向呈中间高两边低的单峰分布。
With side cone the side scattered exposure is decreased, and the distribution becomes complicated with single-peak in the direction perpendicular to the axis.
在有侧向保护器情况下，侧向散射照射量有所减小，在与光轴垂直方向呈中间高两边低的单峰分布。
With side cone the side scattered exposure is decreased, and the distribution becomes complicated with single-peak in the direction perpendicular to the axis.
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