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加速器物理与技术系列讲座 - 第七十五讲
2017-06-15 | 【

  

    講座題目1.Proton-driven plasma wakefield acceleration, AWAKE at CERN           

                            2. An ultra-cold electron source at Manchester 

  主講人夏国兴 博   

  主持人:岳军会 研究员 

    間:427日(周四)下午2:00 

    點:化學樓C407 

   

  內容摘要: 

  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. 

   

  報告人簡介: 

  夏國興博士,目前供職于英國曼徹斯特大學物理和天文學院和Cockcroft加速器科學研究所終身研究員。2003年在中國科學院近代物理研究所獲加速器物理和工程博士學位。2003-2005年在北京大學物理學院做博士後研究。2005年起在德國電子同步加速器研究所DESY做博士後研究,主要參與國際直線對撞機的研發並負責阻尼環的束流動力學研究,期間因爲工作出色獲得DESY的所長研究獎。2008年起在德國馬普物理研究所(Max Planck Institute for Physics)做研究科學家,領導先進加速器加速器研究組 (包括質子驅動等離子體尾場加速和Muon子冷卻實驗組)。 

  夏國興博士主要研究領域包括:基于超短超強激光脈沖和相對論帶電粒子束流驅動的先進等離子加速器,加速器束流動力學,先進材料在加速器中的應用和基于激光冷卻原子的超冷強流電子束等。夏博士是國際期刊Physical Review Letters, Nuclear Instruments and Methods in Physics Research A, Physical Review Accelerators and Beams 等的審稿人。 

   

  (參加此系列講座可計入職工繼續教育2小時,研究生和入所不满两年的青年职工必须参加) 

 

 

   


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