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Chinese Physics C> 1990, Vol. 14> Issue(8) : 677-683 

SHAPE MEASUREMENT OF SYNCHROTRON RADIATION WITH HIGH TIME RESOLUTION

  •  China Institute of Atomic Energy,Beijing1 Xian Institute of Optics and Precision Mechanics2 Institute of High Energy Physics,Academia Sinica,Beijing

  • By using BWS-5k II streak camera made in China,we have measured the time structure of Synchrotron Radiation (SR) from the relatrivistic electron and positron beam bunches of Beijing Electron Positron Collider (BEPC).The dependence of SR width to the intensity of beam current and the voltage of RF source was also measured.The main data taken with 30ps time resolution in the experiment are as follows: The length of VR at Ee=1.549GeV is changed from 220ps to 670ps when the average beam current from 2mA to 30mA,the variation range of CR length at 20mA beam current is 500—700ps with RF source voltage varying between 250kV and 500kV.The time calibration uncertainty of the experiment is ±15%.The trigger jitter is less than ±200ps.
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    [1] A Ogata, et al., IEEE NS NS-32(3), (1985) 1943.[2] 于鸿漩、张琴生等,BEPC储存环同步光系统物理设计”，全国第二次“束测与束控”学术交流会论文集，p. 118,132 (1988).[3] M. BerGher, et al., Nucl. Instr. Meth., A 237, (1985), 259.

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CAO Zhong, LIU Wei-Ren, WANG Li-Lie, XIE Shi-Liang, JIANG Li-Ping, DING Mei-Song, ZHAO Ji-Lai, REN You-Lai, SHAN Bing, ZHAO Zheng and CUI Ming-Qi. SHAPE MEASUREMENT OF SYNCHROTRON RADIATION WITH HIGH TIME RESOLUTION[J]. Chinese Physics C, 1990, 14(8): 677-683.
CAO Zhong, LIU Wei-Ren, WANG Li-Lie, XIE Shi-Liang, JIANG Li-Ping, DING Mei-Song, ZHAO Ji-Lai, REN You-Lai, SHAN Bing, ZHAO Zheng and CUI Ming-Qi. SHAPE MEASUREMENT OF SYNCHROTRON RADIATION WITH HIGH TIME RESOLUTION[J]. Chinese Physics C, 1990, 14(8): 677-683. shu
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Received: 1900-01-01
Revised: 1900-01-01
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SHAPE MEASUREMENT OF SYNCHROTRON RADIATION WITH HIGH TIME RESOLUTION

    Corresponding author: CAO Zhong,
  • China Institute of Atomic Energy,Beijing1 Xian Institute of Optics and Precision Mechanics2 Institute of High Energy Physics,Academia Sinica,Beijing
  • Received Date: 1900-01-01
  • Accepted Date: 1900-01-01
  • Available Online: 1990-08-05

Abstract: By using BWS-5k II streak camera made in China,we have measured the time structure of Synchrotron Radiation (SR) from the relatrivistic electron and positron beam bunches of Beijing Electron Positron Collider (BEPC).The dependence of SR width to the intensity of beam current and the voltage of RF source was also measured.The main data taken with 30ps time resolution in the experiment are as follows: The length of VR at Ee=1.549GeV is changed from 220ps to 670ps when the average beam current from 2mA to 30mA,the variation range of CR length at 20mA beam current is 500—700ps with RF source voltage varying between 250kV and 500kV.The time calibration uncertainty of the experiment is ±15%.The trigger jitter is less than ±200ps.

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