摘要
目的:研究一种CT机电离辐射的适形防护方法,以减轻CT方舱的整体质量,使其在复杂路况的运输成为可能。方法:分析CT机X线剂量分布曲线,结合CT方舱的使用环境,研究防护材料的特性,推导出CT方舱电离辐射适形防护的计算方法。结果:在满足辐射防护国标要求的前提下,采用适形防护方法,将防护材料的用量减少60.2%,满足了CT方舱的运输条件。结论:电离辐射的适形防护方法可有效减少防护材料的用量,降低CT方舱的总体质量,对于日常电离辐射的防护设计也有一定的参考意义。
Objective To design a conformal protection scheme of ionizing radiation in CT shelter in order to facilitate its transportation in complex road conditions by reducing the weight.Methods The X-ray dose distribution curve of CT machine was analyzed,and the characteristics of protective materials were studied on the basis of the application environment of CT shelter,then the computing method for the conformal protection of ionizing radiation in CT shelter was deducted.Results With the international standards for radiation protection observed,conformal protection was realized with the dosage of protective material reduced by 60.2%,so that CT shelter could be transported in complex road conditions.Conclusion Conformal protection can decrease the dosage of protective material and the weight of CT shelter and can provide references for protection design of daily ionizing radiation.
出处
《医疗卫生装备》
CAS
2014年第5期91-94,共4页
Chinese Medical Equipment Journal
基金
全军医学科研"十二五"项目(AWS11Z005-2)
关键词
CT方舱
电离辐射
剂量分布
防护材料
适形防护
CT shelter
ionizing radiation
dose distribution
protective material
conformal protection
