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Chinese Physics C> 2006, Vol. 30> Issue(5) : 466-469 

Experiment and Operation of BEPCⅡ Electron Gun System

  •  Institute of High Energy Physics, CAS, Beijing 100049, China

  • The new electron gun system for the BEPCⅡ was tested on the test bench in July, 2004, and has been put into operation since Nov. 2004. This article describes the experiment results and operation status of this new system. The design current of the gun is 10A for the pulse length of 1ns single bunch or two bunches with repetition rate of 50Hz. The gun is operated with a pulsed high voltage power supply which can provide up to 200kV high voltage. Some important correlation curves are obtained during the experiment. Two-bunch operation is available and some elementary tests have been performed. The measurement results including beam current and beam emittance show that the simulations performed during design stage are roughly consistent with the practice. The practical operation shows that the design and manufacture are basically successful.
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    [1] . Eimac Technical Data 8755, Varian EIMAC Division, 301 Industrial Way, San Carlos, California 940702. Ohsawa S et al. Pre-Injector of the PF 2.5-GeV Linac forthe KEKB and its Performance. Proceeding of the Inter-national Workshop on e+e.. Sources and Pre-Acceleratorsfor Linear Colliders. 1994. 465|4793. PEI Guo-Xi et al. Overview of BEPC/ Linac Upgrade.Preliminary Design Report of BEPC/-Linac: IHEP-BEPC/-SB-03. 20024. WANG Shu-Hong et al. HEP NP, 2002, 26: 1184(in Ghinese)(王书鸿等.高能物理与核物理,2002, 26: 1184)

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LIU Bo, GU Meng-Ping, WANG Shu-Hong, CHI Yun-Long, YANG Xing-Wang, TIAN Shuang-Min, LIU Wei-Bin and YE Qiang. Experiment and Operation of BEPCⅡ Electron Gun System[J]. Chinese Physics C, 2006, 30(5): 466-469.
LIU Bo, GU Meng-Ping, WANG Shu-Hong, CHI Yun-Long, YANG Xing-Wang, TIAN Shuang-Min, LIU Wei-Bin and YE Qiang. Experiment and Operation of BEPCⅡ Electron Gun System[J]. Chinese Physics C, 2006, 30(5): 466-469. shu
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Received: 2005-10-11
Revised: 2005-12-22
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Experiment and Operation of BEPCⅡ Electron Gun System

    Corresponding author: GU Meng-Ping,
  • Institute of High Energy Physics, CAS, Beijing 100049, China
  • Received Date: 2005-10-11
  • Accepted Date: 2005-12-22
  • Available Online: 2006-05-05

Abstract: The new electron gun system for the BEPCⅡ was tested on the test bench in July, 2004, and has been put into operation since Nov. 2004. This article describes the experiment results and operation status of this new system. The design current of the gun is 10A for the pulse length of 1ns single bunch or two bunches with repetition rate of 50Hz. The gun is operated with a pulsed high voltage power supply which can provide up to 200kV high voltage. Some important correlation curves are obtained during the experiment. Two-bunch operation is available and some elementary tests have been performed. The measurement results including beam current and beam emittance show that the simulations performed during design stage are roughly consistent with the practice. The practical operation shows that the design and manufacture are basically successful.

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