基于ETA教学模型的辐射与物质相互作用及屏蔽原理虚拟仿真实验设计  

Virtual simulation experiment design of radiation-matter interaction and shielding principle based on ETA teaching model

作　　者：潘崇佩 李文华 徐音 喻纯旭 孔勇发 PAN Chongpei;LI Wenhua;XU Yin;YU Chunxu;KONG Yongfa(National Demonstration Center for Experimental Fundamental Physics Education,School of Physics,Nankai University,Tianjin 300071,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

出　　处：《实验技术与管理》2024年第11期114-122,共9页Experimental Technology and Management

基　　金：教育部物理学育人模式改革虚拟教研室(教高厅函[2022]2号);教育部产学合作协同育人项目(202102153038);南开大学本科教育教学改革项目(NKJG2022019);南开大学自制实验教学仪器项目(23NKZZYQ02,23NKZZYQ05)。

摘　　要：伴随“双万计划”持续推进,国内虚拟仿真实验教学体系已进入高质量、规模化发展阶段。目前,虚拟仿真建设案例仍在大量涌现,然而对于虚拟仿真实验与特定教学方法的适配性研究尚不多见。在此背景下,该文基于物理教育领域新兴的ETA教学模型,构建了“辐射与物质相互作用及屏蔽原理”虚拟仿真实验案例,详细介绍立足于“实验、理论、应用”三大模块的整体化教学设计,并对教学效果进行分析。这种以特定教学模型为中心框架的虚拟仿真实验项目结构化设计范式有望为其他实验的建设与应用提供有益参考。[Objective]With the ongoing advancement of the“Double Ten Thousand Plan”,China’s domestic virtual simulation experiment teaching system is experiencing high-quality and large-scale development.Currently,research in this field focuses mostly on sharing experiences in constructing and managing specific experimental projects,with limited attention to teaching methods in virtual simulation experiments.Given the evolving landscape,it is necessary to thoroughly review and reflect on the design principles of virtual simulation experiments from a practical perspective to obtain generalizable insights.A key area of interest is integrating appropriate teaching models into virtual simulation courses to foster innovation and challenge.[Methods]This study first analyzed common problems in current virtual simulation experiments in nuclear physics,including monotonous teaching content with insufficient scalability,poor integration of experiments with theory and application,and a lack of personalized student development.To address these issues,an emerging ETA education model was considered.Using the ETA cognitive model as a teaching framework,a virtual simulation experiment case titled“radiation material interaction and shielding principle”was constructed.[Results]According to the requirements of the ETA model,the model divides the experimental content into three logical modules:E,T,and A.The E module features low-difficulty,intuitive,and visual experiments,including track measurements and characteristic physical quantity measurements.The T module emphasizes pattern exploration through experiments,requiring students to compare and validate experimental data with physical theories to establish theoretical understanding.The A module presents three practical nuclear physics scenarios:radiation shielding design,CT detection principles,and heavy ion therapy.These comprehensive experiments help students build their own knowledge systems and apply them to real-world contexts.The modules include over 20 experimental sub-questi

关 键 词：虚拟仿真实验 ETA 核物理 UNITY3D GEANT4 

分 类 号：O571.1[理学—粒子物理与原子核物理]