微焦点X射线管的CST仿真设计  

Design and CST Simulation of Microfocus X-ray Tube

作　　者：谭淦 钟敏良 曾德榕 高巍巍 蓝杰钦 TAN Gan;ZHONG Minliang;ZENG Derong;GAO Weiwei;LAN Jieqin(School of Electronic,Electrical and Physics,Fujian University of Technology,Fujian 350118,China.)

机构地区：[1]福建理工大学电子电气与物理学院,福建350118

出　　处：《电子技术(上海)》2024年第12期1-3,共3页Electronic Technology

基　　金：国家自然科学基金项目(12005039);福建省自然科学基金项目(2018J01586)。

摘　　要：阐述利用CST粒子工作室对X射线管进行建模仿真,研究了电子发射系统、聚焦极等组件参数对电子束在阳极上焦点尺寸的影响。在管电压为130kV条件下,通过选取合适的组件结构和参数,最终设计出焦点为25μm,阳极电流为0.3mA的微焦点X射线管。仿真结果显示,该结构能在一定管电压范围内保持比较稳定的微焦点尺寸。This paper describes the modeling and simulation of an X-ray tube using CST Particle Studio,and studies the influence of electron emission system,focusing electrode and other component parameters on the focal size of electron beam on the anode.Under the condition of a tube voltage of 130kV,a micro focus X-ray tube with a focal point of 25μm and an anode current of 0.3mA was ultimately designed by selecting appropriate component structures and parameters.The simulation results show that the structure can maintain a relatively stable micro focus size within a certain range of tube voltages.

关 键 词：X射线管 CST仿真 微焦点 

分 类 号：TN14[电子电信—物理电子学]