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透视时医师除受穿透铅玻璃的原射线照射外,尚受到大量来自患者、空气、墙壁及各种设备的散射辐射的损害,现针对透视中如何防御辐射损害的问题提出一些建议。 1、放射工作人员从业前均需经必要的防护知识的教育;在人员配备上应相应较多些。以减少每人平均照射量。 2、透视机应配有性能良好的防护设备,包括诊断用防护型管套、足够厚的二次滤过板、固定孔的限线板(古钱)、限光筒及活动式限线器,后两种装置保证在荧光屏拉至最远处时,照射野尚小于荧光屏面积。应配备透视
In addition to exposure to primary radiation penetrated by lead glass, physicians are still suffering from a large amount of scattered radiation from patients, air, walls and various devices. Some suggestions are put forward on how to prevent radiation damage in fluoroscopy. 1, Radiation workers are required before the pre-employment of the protection of knowledge and education; in the staffing should be more corresponding. To reduce the average exposure per person. 2, the perspective machine should be equipped with good protective equipment, including the diagnosis of protective sleeve, the second filter plate thick enough, fixed hole limit plate (ancient money), limited light tube and movable limiter , The latter two devices to ensure that when the screen is pulled farthest, the irradiation field is still smaller than the screen area. Should be equipped with perspective