基于双能X射线透射成像与能量色散衍射的物质分类与识别虚拟仿真实验  

Virtual Simulation Experiment for Classifying and Identifying Substances Based on Dual-energy X-ray Imaging and Energy Dispersive X-ray Diffraction

作　　者：刘斐[1] 王风丽[1] 王新[1] 方恺[1] 张锦龙[1] 王占山[1] LIU Fei;WANG Fengli;WANG Xin;FANG Kai;ZHANG Jinlong;WANG Zhanshan(School of Physics Science and Engineering,Tongji University,Shanghai 200092,China)

机构地区：[1]同济大学物理科学与工程学院,上海200092

出　　处：《实验室研究与探索》2024年第8期35-40,46,共7页Research and Exploration In Laboratory

基　　金：同济大学实验教学改革基金项目(1370101331)。

摘　　要：X射线相关技术发展至今已逾百年。针对安检领域快速、准确应用要求,以双能X射线透射成像与能量色散X射线衍射技术相结合的复合式违禁品快速检测的前沿课题研究为基础,通过模拟实验场景和实验过程,设计基于X射线技术的物质分类与识别虚拟仿真实验。内容包含参观虚拟实验室与实验预习、系统搭建、实验操作与数据处理和实验拓展等多个模块,构建全过程、多环节在线教学环境,实现分层次教学。学生通过X射线技术分类识别物质的原理、方法和安全规范,加深对X射线与物质相互作用原理的理解,培养学生的实验能力、科学观察和创新思维能力。A virtual experiment for classifying and identifying substances based on X-ray technology was designed based on a cutting-edge research combines dual-energy X-ray transmission imaging with energy dispersive X-ray diffraction system in order to rapidly and accurately detect contrabands on the application of security inspection.The experiment builds a comprehensive teaching environment for hierarchical teaching with several modules such as preview and visiting the virtual lab,instrument construction,operation and data processing,and expansion experiment.Students can learn the principles,experimental methods,and safety standards of X-ray technology for classifying and identifying substances,deepen their understanding of the principle of interaction between X-rays and substances,and cultivate experimental abilities and creatively science think.

关 键 词：X射线 虚拟仿真实验 双能X射线透射成像 能量色散X射线衍射 

分 类 号：O434。1[机械工程—光学工程]