Electron cloud instability studies in the Beijing Electron Positron Collider
Electron cloud instability studies in the Beijing Electron Positron Collider
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DOI：
10.1103/physrevstab.7.094401
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发表时间：
2004-09
影响因子：
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通讯作者：
王九庆;国智元;刘瑜冬;秦庆;邢军;赵政;Jiuqing Wang;Z. Guo;Yd Liu;Q. Qin;J. Xing;Z. Zhao
中科院分区：
文献类型：
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作者：
王九庆;国智元;刘瑜冬;秦庆;邢军;赵政;Jiuqing Wang;Z. Guo;Yd Liu;Q. Qin;J. Xing;Z. Zhao
对北京正负电子对撞机（BEPC）上的电子云不稳定性（ECI）进行了系统的实验和模拟研究。在BEPC储存环上安装了多个电子云探测器，用于测量电子产额。在北京正负电子对撞机（BEPC）上，实验研究了螺线管、清除电极、色度和八极对ECI的影响。为了评估BEPC的升级工程BEPCII中的电子耦合不稳定性，本文编制了一个计算程序，模拟了不同条件下前室中的电子密度，以及电子云引起的单团簇和耦合团簇不稳定性的发展过程。实验和模拟结果，以及活动，本文报道。
The electron cloud instability (ECI) in the Beijing Electron Positron Collider (BEPC) was studied systematically with experiments and simulations in recent years. Several electron cloud detectors have been installed into the BEPC storage ring to measure the electron yield. The effects of solenoid, the clearing electrode, the chromaticity, and the octupole on ECI have been investigated in BEPC experimentally. To evaluate the ECI in BEPCII, the upgrade project of BEPC, a computer code has been developed to simulate the electron density in the antechamber under different conditions, as well as the progress of the single bunch and coupled-bunch instabilities caused by the electron cloud. The experimental and simulation results, as well as the activities, are reported in this paper.