The Studies of Electron Cloud Instability in the BEPC

  • The Electron Cloud Instability (ECI) may occur in a positively charged particle storage ring when the machine is operated with a multi-bunch beam. The related experiments have been carried out on the Beijing Electron Positron Collider (BEPC) since 1996. The phenomena of the ECI are mainly coupled bunch oscillation and transverse beam size blow up. The ECI studies at the BEPC are reviewed in this paper, both on experiments and on simulations. The potential methods to suppress the ECI in a positron storage ring have been summarized from the studies.
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  • [1] . Izawa M et al. Phys. Rev. Lett., 1995, 74: 50442. GUO Z Y et al. The Experimental Study on Beam-Photoelectron Instability in BEPC, Proc. of PAC’97, 19973. GUO Z Y et al. Studies on the Photoelectron Cloud at theBEPC, Proc. of APAC’01, 2001 APAC’03, 20044. WANG J Q et al. PRSTAB, 2004, 7: 0944015. QIN Q et al. NIM, 2005, A547: 239—2486. CHAO A. Physics of Collective Instability in High EnergyAccelerators, J. Willey, 19937. LIU Y D et al. Private Communication8. LIU Yu-Dong. HEP NP, 2004, 28: 1222(in Chinese)(刘瑜冬等.高能物理和核物理,2004, 28: 1222)
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GUO Zhi-Yuan, LIU Yu-Dong, Qin Qing, WANG Jiu-Qing and XING Jun. The Studies of Electron Cloud Instability in the BEPC[J]. Chinese Physics C, 2006, 30(S1): 102-104.
GUO Zhi-Yuan, LIU Yu-Dong, Qin Qing, WANG Jiu-Qing and XING Jun. The Studies of Electron Cloud Instability in the BEPC[J]. Chinese Physics C, 2006, 30(S1): 102-104. shu
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Received: 2005-12-07
Revised: 1900-01-01
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The Studies of Electron Cloud Instability in the BEPC

    Corresponding author: GUO Zhi-Yuan,
  • Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China

Abstract: The Electron Cloud Instability (ECI) may occur in a positively charged particle storage ring when the machine is operated with a multi-bunch beam. The related experiments have been carried out on the Beijing Electron Positron Collider (BEPC) since 1996. The phenomena of the ECI are mainly coupled bunch oscillation and transverse beam size blow up. The ECI studies at the BEPC are reviewed in this paper, both on experiments and on simulations. The potential methods to suppress the ECI in a positron storage ring have been summarized from the studies.

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