摘要
为了优化反射式X射线管在辐照应用中的性能,本文通过建立反射式X射线管靶的仿真模型,分析了不同靶材与靶角对其性能的影响。仿真结果表明,钨靶具有较高的X射线产出率,为最优靶材,20°靶角时X射线产出率最大。在此基础上,采用蒙特卡罗方法模拟得到辐照区域的X射线强度和剂量分布曲线,并用热释光法对理论结果进行了实验验证。结果显示,X射线管在阴极-阳极方向存在明显足跟效应,而垂直方向剂量分布较为均匀。研究成果为辐照用X射线管设计提供了依据,特别是在靶材选择、靶角优化和剂量分布控制方面具有重要指导意义。
To optimize the performance of the reflection-type X-ray tube in radiation applications,this paper established a simulation model for the anode target of the reflection-type X-ray tube,and analyzed the effects of different target materials and target angles on its performance.The simulation results show that the tungsten target has a relatively high X-ray output rate and is the optimal target material,and the X-ray output rate is maximized at a 20°target angle.On this basis,the Monte Carlo method was used to obtain the X-ray intensity and dose distribution curves in the irradiation area,and the theoretical results were experimentally verified using the thermoluminescence method.The results show that the X-ray tube has a significant heel effect in the cathode-anode direction,while the dose distribution is more uniform in the perpendicular direction.These studies provide scientific evidence for optimizing X-ray radiation technology,especially in the selection of target materials,optimization of target angles,and control of dose distribution.
作者
王浩然
马跃
孟德川
吴琼
武浩楠
邓玉福
WANG Haoran;MA Yue;MENG Dechuan;WU Qiong;WU Haonan;DENG Yufu(College of Physical Science and Technology,Shenyang Normal University,Shenyang,110034,China;Liaoning Provincial Professional and Technological Innovation Center for Radiation Instrumentation,Shenyang,110034,China;Experimental Teaching Center,Shenyang Normal University,Shenyang,110034,China)
出处
《核电子学与探测技术》
北大核心
2025年第8期1228-1234,共7页
Nuclear Electronics & Detection Technology
基金
国家自然科学基金项目(12075158)
辽宁省教育厅基本科研项目(LJKFZ20220267)
辽宁省属本科高校基本科研业务费支持项目(LJ202410166040)
辽宁省揭榜挂帅科技攻关专项项目(2022JH1/10400034)。
关键词
靶角
靶材
强度
剂量
target angle
targets
strength
dosage
作者简介
王浩然(1999-),男,现为硕士研究生,研究领域为X射线应用技术,E-mail:2643631264@qq.com;通讯作者:邓玉福,E-mail:yfdeng668@sina.com;通讯作者:孟德川,E-mail:mengdengchuan023@163.com;通讯作者:马跃,E-mail 958343050@qq.com。
