The properties of polytrifluorochloroethylene foils are found to change, when they are irradiated by X-rays.Experiments shows that irradiation will affect the charge storage in the sample.

• 测量了聚三氟氯乙烯薄膜受X射线辐照后电荷贮存能力发生的变化，推导了辐照样品表面电位变化的公式。