人体放疗辐射场检测系统研制  

Research and fabrication of radiation field detection system for radiotherapy

作　　者：赵虎[1,2] 宁文波 蒙亚杰 曾亚征 李雪 贺强强 ZHAO Hu;NING Wenbo;MENG Yajie;ZENG Yazheng;LI Xue;HE Qiangqiang(School of Electrical and Information Engineering,North Minzu University,Yinchuan 750021,China;Key Laboratory of Atmospheric Environment Remote Sensing in Ningxia Autonomous Region,Yinchuan 750021,China)

机构地区：[1]北方民族大学电气信息工程学院,宁夏银川750021 [2]宁夏回族自治区大气环境遥感探测重点实验室,宁夏银川750021

出　　处：《传感器与微系统》2023年第12期99-102,共4页Transducer and Microsystem Technologies

基　　金：国家自然科学基金资助项目(42165010);北方民族大学研究生创新项目(YCX22129)。

摘　　要：放疗辐射场检测系统是保证放疗安全和放疗质量的重要设备。针对检测设备测试效率低、价格昂贵等问题,基于数据采集卡和C++语言进行硬件搭建和软件编程设计,实现了放疗辐射场检测系统。经现场测试,对不同条件下检测数据进行分析,在10 cm×10 cm射野下6 MV X射线的射线质量指数为67.32%±0.68%,深度为5 cm时离轴比曲线均整度为102.78%±0.95%、对称性为101.91%±0.88%;6 MeV电子束的对称性和均整度分别为102.39%±0.36%,103.11%±0.35%。结果表明,系统具有较好的探测准确性和稳定性。The radiation field detection system for radiotherapy is an important equipment to ensure the safety and quality of radiotherapy.Aiming at the problem of low testing efficiency and high price of testing equipment,a radiation field detecting system for radiotherapy is implemented based on data acquisition card and C++language for hardware construction and software programming design.After on-site testing,test data under different conditions are analyzed,ray quality index of 6MV X-ray in a 10 cm×10 cm radiation field is 67.32%±0.68%,at a depth of 5 cm,the off-axis ratio(OAR)curve has an evenness of 102.78%±0.95%and a symmetry of 101.91%±0.88%;The symmetry and evenness of the 6 MeV electron beam are 102.39%±0.36%and 103.11%±0.35%,respectively.The results indicate that the system has good detection accuracy and stability.

关 键 词：放疗辐射场 C++语言 百分深度剂量 离轴比 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TN06[自动化与计算机技术—控制科学与工程]