医用X射线摄影立位防护屏的防护效果

Effectiveness of Medical Chest X-ray Shielding by an Orthostatic Screen

[目的]探讨医用X射线摄影立位防护屏的使用对受检者的防护效果。[方法]利用放热释光剂量计检测立位防护屏前后和常用个人防护用品里外的辐射剂量,比较并分析这两类屏蔽防护的效果。[结果]立位防护屏和个人防护用品对主射线的屏蔽效果基本相同,但使用立位防护屏,将增加一些散射辐射。[结论]立位防护屏使用方便,受检者易接受,对主射线的屏蔽效果明显,但其带来的散射线对受检者的影响也应予以重视。

[ Objective ] To examine effectiveness of an orthostatie shielding screen in medical Chest X-ray photography. [ Methods ] The radiation doses on/under a shielding screen and a regular personal protective equipment（ PPE ）were measured by a thermoluminescent dosimeter. The protection effectiveness between the two shielding methods were compared. [ Results ] The protection effectiveness of primary X-rays were nearly the same by using the orthostatic screen and the 19PEs. However, scattering radiation were detected in using the screen. [ Conclusion ] The orthostatic shielding screen is convenient and more compliant to examinees. It showed an obvious protection to primary X-rays, but the scattering radiation could be an issue in its application.