The Studies of Electron Cloud Instability in the BEPC

GUO Zhi-Yuan; LIU Yu-Dong; Qin Qing; WANG Jiu-Qing; XING Jun

Chinese Physics C> 2006, Vol. 30> Issue(S1) : 102-104

The Studies of Electron Cloud Instability in the BEPC

Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China

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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.

References

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. 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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沈阳化工大学材料科学与工程学院沈阳 110142

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

Received Date: 2005-12-07
Accepted Date: 1900-01-01
Available Online: 2006-01-04

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.