ACADEMIC ACTIVITIES
学术活动学术讲座 - 带电粒子的加速结构发展
2023-03-17如何设计一种加速结构实现对带电粒子的高效加速是各种类型的加速器设计的核心追求目标之一,加速形式从最初的高压静电、回旋、漂移管、到RFQ结构、诺振腔电磁波加速,以及现在发展的介质管和尾场加速等等。根据加速带电粒子类型的不同,选用不同的加速结构,随着时间的推移,更高效的加速方式被不断发明,加速粒子的能量从20世纪30年代的kev推进至现在的TeV,经历近100年的发展,能最跨越了9个数量级,使得人类认识物质结构的能...
学术讲座 - Investigating the stacking modulated spin and electronic structure on the atomic scale
2023-02-28Controlling the crystal structure is a powerful approach for manipulating the fundamental properties otcontrol can be achieved by modifyingsolids. Unique to two-dimensional (2D) van der Waals materials, thethe interlayer stacking order through rotation and translation between the lavers. Taking the advantage oscanning tunneling microscopy (STM) and spin-polarized STM,I will give two examples of...
学术讲座 - Beam Collective Effect Study in Electron Storage Rings
2023-02-20As a large and comprehensive scientific research facility, storage ring light sourceswhich constrain, accumulate, store electrons and force electrons to give out radiationhave now become one of the most monumental tools in chemocatalysis, bioscience,material science, condensed matter physics, et al. To make the radiated light brighterand get a clearer view, the stored beam current needs to be i...
学术讲座 - 基于电子存储环的高功率EUV光源
2023-02-13高功率EUV光源是限制我国半导体先进制程的一个重要瓶颈。本报告介绍一种基于电子加速器(电子储存环)的高功率EUV产生方案,并分析其优缺点和技术难点。扫码入