Simulation of Coupled Bunch Instability

Wang Lanfa; Zhang Chuang; Wang Shuhong; Guo Zhiyuan; Lin Yuzheng; Tong Dechun

Chinese Physics C> 1998, Vol. 22> Issue(12) : 1174-1181

Simulation of Coupled Bunch Instability

Institute of High Engineering Physics, The Chinese Academy of Sciences, Beijing 1000391 Departmnt of Engineering Phylsics, Tsinghua University, Beijing 100084

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Abstract：
The beam dynamics of coupled bunch instability is studied using simulation method in this paper. The code SCBI (Simulation of Coupled-Bunch Instabilities) is developed. ms code can be used to study the multi-bunch instabilities including the effects of long range and mediate range wake field due to RF HOMs, resistive wall and other cavity shape element along the ring. The simulation results using SCBI are compared with those of ZAP when bunches are symmetrically distributed, showing a good agreement with each other. The code SCBI has been used to study the multi-bunch instability in BEPCⅡ.

References

[1]

Wang Lanfa.BEPC Multibunch Collision and Coupled Bunch Instabilities, PH. D. thesis, IHEP(王兰法.BEPC多束团对撞与耦合束不稳定性,博士论文,中国科学院高能物理研究所) [2] Laclare J L.Bunch Beam Instabilities, Pro.Int. Conf.High–energy Accelerators, Deneva.1980, 526—539 [3] Laclare J L. Bunch Beam Coherent Instabilities, CERN 87–03, Vol.1,1987, 264─326[4] Zisman M S, Chattopadhyay S,Bisognano J. ZAP Code,Lawrence Berkeley Laboratory, 1989 [5] Chao Alexander Wu.Physics of Collective Beam Instabilites High Energy Accelerators, Wiley-Interscience Publication, John Wiley Sons, Inc.,1992

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Wang Lanfa, Zhang Chuang, Wang Shuhong, Guo Zhiyuan, Lin Yuzheng and Tong Dechun. Simulation of Coupled Bunch Instability[J]. Chinese Physics C, 1998, 22(12): 1174-1181.

Wang Lanfa, Zhang Chuang, Wang Shuhong, Guo Zhiyuan, Lin Yuzheng and Tong Dechun. Simulation of Coupled Bunch Instability[J]. Chinese Physics C, 1998, 22(12): 1174-1181. shu

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Received: 1998-01-04
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

Simulation of Coupled Bunch Instability

Corresponding author: Wang Lanfa,

Institute of High Engineering Physics, The Chinese Academy of Sciences, Beijing 1000391 Departmnt of Engineering Phylsics, Tsinghua University, Beijing 100084

Received Date: 1998-01-04
Accepted Date: 1900-01-01
Available Online: 1998-12-05

Abstract: The beam dynamics of coupled bunch instability is studied using simulation method in this paper. The code SCBI (Simulation of Coupled-Bunch Instabilities) is developed. ms code can be used to study the multi-bunch instabilities including the effects of long range and mediate range wake field due to RF HOMs, resistive wall and other cavity shape element along the ring. The simulation results using SCBI are compared with those of ZAP when bunches are symmetrically distributed, showing a good agreement with each other. The code SCBI has been used to study the multi-bunch instability in BEPCⅡ.