目的进一步探讨增感屏胶片系统特性曲线距离测定法。

Objective: to inquire into distance method of the characteristic curve for screen-film system.

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本文论证了利用CCD测定X射线胶片和增感屏调制传递函数的可行性，并给出了一种适用于CCD测试数据的处理方法。

It is feasible that to use CCD device and image processing system in measurement of the modulation transfer function (MTF) of X-ray film and luminescent screen.

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