基于Unity3D的核衰变及高速带电粒子动能动量测量实验  

Measurement experiment of kinetic energy and momentum of charged particles with high speed generated from nuclear decay based on Unity3D

作　　者：潘崇佩 李文华 徐音 喻纯旭 孔勇发 王鸿鹏 高振元 PAN Chongpei;LI Wenhua;XU Yin;YU Chunxu;KONG Yongfa;WANG Hongpeng;GAO Zhenyuan(National Demonstration Center for Experimental Fundamental Physics Education,School of Physics,Nankai University,Tianjin 300071,China;Virtual Simulation Experimental Teaching Center,College of Artificial Intelligence,Nankai University,Tianjin 300350,China;Tianjin Miragestars Digital Technology Co.,Ltd.,Tianjin 300131,China)

机构地区：[1]南开大学物理科学学院,基础物理国家级实验教学示范中心,天津300071 [2]南开大学人工智能学院,虚拟仿真实验教学中心,天津300350 [3]天津瀚海星云数字科技股份有限公司,天津300131

出　　处：《实验技术与管理》2021年第9期123-127,共5页Experimental Technology and Management

基　　金：南开大学虚拟仿真实验教学项目(C029205003);南开大学实验教学课程改革项目(2019NKSYJXKCGG11);南开大学自制实验教学仪器项目(20NKZZYQ09)。

摘　　要：运用虚拟仿真技术,设计并开发了核衰变及高速带电粒子动能动量测量实验系统。利用浏览器中的3D模拟交互操作,学生可对放射源、β磁谱仪、探测器等核心实验装置实现高自由度、个性化定制。引入核物理领域广泛应用的Geant4科学计算程序,确保实验系统仿真结果具有即时性、真实性及可信度。通过引导式教学,学生不仅可以对相对论粒子动能与动量关系进行探究分析,还可扩展核屏蔽在内的多类核物理实验内容。实践表明,该实验能够满足核相关专业的教学需求,能够提升学生解决综合问题的能力。Virtual simulation technology is used to design and develop an experimental system for measurement of the kinetic energy and momentum of charged particles with high speed generated from nuclear decay. Through the 3 D interactive operation in browser, students can set some fundamental experimental components with high degree of freedom and personalized customization, such as the type of radioactive source, the size of the beta spectrometer and detectors. The system introduces the Geant4 scientific computing program, which is widely used in the field of nuclear physics, to ensure that the simulation results are instantaneous, authentic and reliable. Through the guided teaching, students can explore and analyze not only the relationship between the kinetic energy and momentum of relativistic particles, but also various types of nuclear physics experiments including nuclear shielding. Practice shows that the experiment meets the teaching needs in nuclear-related majors and improves students’ ability to solve comprehensive problems.

关 键 词：虚拟仿真 实验教学 核物理实验 UNITY3D GEANT4 

分 类 号：O571.1[理学—粒子物理与原子核物理]