床边X线机摄影公众辐射剂量计算及辐射防护评价  

Public Radiation Dose Algorithm and Radiation Protection Assessment of Bedside X-ray Machine

作　　者：储晓阳[1] 柏彭开 CHU Xiao-yang;BAI Peng-kai(Department of Medical Equipment, the Second Affiliated Hospital of Guangxi Medical University, Nanning Guangxi 530021, China;Department of Medical Equipment, the Third People’s Hospital of Hechi, Hechi Guangxi 547000, China)

机构地区：[1]广西医科大学第二附属医院医疗设备科,广西南宁530021 [2]河池市第三人民医院医疗设备科,广西河池547000

出　　处：《中国医疗设备》2017年第3期89-92,共4页China Medical Devices

摘　　要：目的探究移动式床边X线机拍片时公众所受到的辐射剂量。方法本研究对医院的集中式病房进行辐射检测,将检测到的辐射剂量率按照临床规律建立数学模型,转化为年有效剂量的数据结果,与国家规定的辐射安全限值做对比,进行辐射安全防护评价。结果床边X线机拍片时公众受到的年辐射剂量值远低于国家安全标准的年有效剂量限值,符合国家安全标准。结论床边X线机拍片公众辐射量在安全范围,但应当需要在PICU、新生儿科以及近距离家属加以适当防护。Objective To explore the radiation dose the public received while the mobile bedside X-ray machine is working. Methods Firstly, the radiation dose of hospital’s centralized ward was detected.Based on the detected radiation dose rate, a mathematical model was built to transform it to the annual effective dose according to the clinical regularities. Then radiation protection assessment was made by comparing it with the radiation safety limit specified by the state. Results The annual radiation dose public received was far below than that of annual effective dose limit specified by the state when bedside Xraymachine was working, which met the national safety standards. Conclusion Though the public radiation dose of bedside Xraymachine is within the safety range, it is still necessary to implement protective measures in pediatric intensive care unit, neonatology department and patients’ family members who stay beside patient.

关 键 词：移动式床边X线机 辐射防护 公众辐射剂量 剂量限值 剂量检测 剂量算法 防护 

分 类 号：TH774[机械工程—仪器科学与技术]