主講人 (Lecturer)：Dr. Yunhai Cai, SLAC, USA 

　　主持人 (Chair)：Prof. Jie Gao, IHEP 

　　講座題目 (Theme)：Frontier of Electron Storage Rings 

　　內(nèi)容摘要 (Abstract)： 

　　Electron storage rings are widely used for high energy luminosity colliders and synchrotron light sources. They have become essential facilities to study high energy physics, material, biology, and medical sciences. To future increase the brightness of synchrotron light sources or the luminosity of colliders. The beam emittance is being continually reduced, recently to the nanometers. In the next decade, another order of reduction is expected. The requirement of ultra-low emittance presents many design challenges in beam dynamics, including better analysis of maps and improvement of dynamic apertures. In this talk, I will present the recent developments in single-particle beam dynamics and use two challenging designs of storage rings for illustrations. 

　　演講人簡(jiǎn)介 (Lecturer’s short bio): 

　　Yunhai Cai graduated from Peking University In 1982 in Physics Major. In 1988, he received a Ph.D in Elementary Particle Physics from University of Texas at Austin. Two years later, he joined the Superconducting Super Collider (SSC) Laboratory in Dallas, working on the correction system in the collider ring. In 1994, he went to SLAC National Accelerator Laboratory and worked on the PEP-II project until 2008. For the PEP-II collider, his main interests were on the machine optics, nonlinear beam dynamics, and beam-beam effects. Since 2008, he becomes the head of the FEL and Beam Physics Department at SLAC. 

　　（參加此系列講座可計(jì)入職工繼續(xù)教育2小時(shí)）(Permanent Education Program) 

　　時(shí)間 (Time)：2014年4月22日（星期二）下午14：00 (April 22, 14:00) 

　　地點(diǎn) (Place)：5#廳二樓會(huì)議室（Hall No.5, Meeting Room）