强激光与粒子束2025，Vol.37Issue(4)：106-112,7.DOI:10.11884/HPLPB202537.240236
电子储存环逐圈束流损失的探测
Detection of turn-by-turn beam loss in electron storage rings
摘要
Abstract
At the initial stage of beam commissioning,the turn-by-turn beam loss signals from the electron storage ring directly display the injection and accumulation of the beam.This paper introduces the types of beam loss mechanisms and enumerates several common types of beam loss monitors and their parameters.Based on the parameters of the upgrade project of the Beijing Electron Positron Collider(BEPCⅡ),beam loss was simulated using Geant4.The distribution of shower electrons and photons outside the vacuum chamber was analyzed.A scintillator coupled with a photomultiplier tube(PMT)monitor was chosen to detect the turn-by-turn beam loss signals.Beam tests were conducted at BEPCⅡ,and the self-developed electronic system was used for signal acquisition and processing.To address the issue of inconsistent performance among scintillator beam loss monitors,sensitivity calibration was performed,followed by beam verification at BEPCⅡ.This paper also introduces the signal acquisition and processing in electronics,along with the calculation and analysis of the measurement accuracy.These experiments has laid the foundation for the application of scintillation beam loss monitors in high energy photon source.关键词
束流损失探测器/Geant4/光电倍增管/束流诊断/高能同步辐射光源Key words
beam loss monitor/Geant4/photomultiplier tube/beam diagnostics/high energy photon source分类
能源科技引用本文复制引用
任俊杰,随艳峰,于令达,汪林,徐韬光,何俊,岳军会..电子储存环逐圈束流损失的探测[J].强激光与粒子束,2025,37(4):106-112,7.基金项目
国家自然科学基金面上项目(1247052027) （1247052027）
