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加速器物理与技术系列讲座 - 第七十五讲
2017-06-15 | 【

  

    讲座题目1.Proton-driven plasma wakefield acceleration, AWAKE at CERN           

                            2. An ultra-cold electron source at Manchester 

  主讲人夏国兴 博   

  主持人:岳军会 研究员 

    间:427日(周四)下午2:00 

    点:化学楼C407 

   

  内容摘要: 

  1Proton-driven plasma wakefield acceleration, AWAKE at CERN 

  摘要:Plasma, the fourth state of matter can sustain very large electric fields due to its intrinsic property. This strong electric field can be harnessed for a much more efficient particle acceleration. Since its inception in 1979, plasma-based accelerators have achieved tremendous progress in the last three decades. Laser wakefield acceleration (LWFA) has routinely achieved GeV beam energy in centimeter long plasma channel. Electron beam driven plasma wakefield acceleration (PWFA) has successfully demonstrated the energy doubling of a 42 GeV SLC electron beam at SLAC and achieved the high efficiency acceleration for electrons and positrons, respectively. The new plasma-based acceleration experiment, so-called AWAKE at CERN is currently coming online and will be demonstrating the proton-driven plasma wakefield acceleration. In this talk, I will introduce the basic principles and the development of proton-driven plasma wakefield acceleration scheme. The current status of the AWAKE experiment at CERN and its future perspective will also be discussed. 

  2An ultra-cold electron source at Manchester 

  摘要:A new scheme to produce an ultra-cold (mK level), high brightness electron beam from a magnetic-optical trap (MOT) is introduced. In this talk, I will review the latest development of an ac-MOT facility in the Photon Science Institute (PSI) of the University of Manchester. The working principles, latest results on the beam extraction and the future experiment based on this facility are also given. 

   

  报告人概况: 

  夏国兴博士,目前供职于英国曼彻斯特大学物理和天文学院和Cockcroft加速器科学研究所终身研究员。2003年在新葡萄娱乐在线网站近代物理研究所获加速器物理和工程博士学位。2003-2005年在北京大学物理学院做博士后研究。2005年起在德国电子同步加速器研究所DESY做博士后研究,主要参与国际直线对撞机的研发并负责阻尼环的束流动力学研究,期间因为工作出色获得DESY的所长研究奖。2008年起在德国马普物理研究所(Max Planck Institute for Physics)做研究科学家,领导先进加速器加速器研究组 (包括质子驱动等离子体尾场加速和Muon子冷却实验组)。 

  夏国兴博士主要研究领域包括:基于超短超强激光脉冲和相对论带电粒子束流驱动的先进等离子加速器,加速器束流动力学,先进材料在加速器中的应用和基于激光冷却原子的超冷强流电子束等。夏博士是国际期刊Physical Review Letters, Nuclear Instruments and Methods in Physics Research A, Physical Review Accelerators and Beams 等的审稿人。 

   

  (参加此系列讲座可计入职工继续教育2小时,研究生和入所不满两年的青年职工必须参加) 

 

 

   


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