高能物理与核物理
高能物理與覈物理
고능물리여핵물리
HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS
2006年
3期
260-263
,共4页
刘瑜冬%国智元%秦庆%王九庆%赵政
劉瑜鼕%國智元%秦慶%王九慶%趙政
류유동%국지원%진경%왕구경%조정
电子云%条纹相机%单束团不稳定性%头尾模型
電子雲%條紋相機%單束糰不穩定性%頭尾模型
전자운%조문상궤%단속단불은정성%두미모형
electron cloud%streak camera%single bunch instability%head-tail model
多束团正电子储存环中可能发生电子云不稳定性.由于电子云导致的束团横向尺寸增长已经成为提高对撞机对撞亮度的主要限制因素之一.介绍了在BEPC储存环中,利用条纹相机直接测量由于电子云导致的束团横向尺寸增长结果,并与模拟计算进行了比较.
多束糰正電子儲存環中可能髮生電子雲不穩定性.由于電子雲導緻的束糰橫嚮呎吋增長已經成為提高對撞機對撞亮度的主要限製因素之一.介紹瞭在BEPC儲存環中,利用條紋相機直接測量由于電子雲導緻的束糰橫嚮呎吋增長結果,併與模擬計算進行瞭比較.
다속단정전자저존배중가능발생전자운불은정성.유우전자운도치적속단횡향척촌증장이경성위제고대당궤대당량도적주요한제인소지일.개소료재BEPC저존배중,이용조문상궤직접측량유우전자운도치적속단횡향척촌증장결과,병여모의계산진행료비교.
Electron cloud instability (ECI) may take place in a storage ring when the machine is operated with a multi-bunch positively charged beam. Transverse blowup due to electron cloud has been observed in some machines and is considered to be a major limit factor in the development of high current and high luminosity electron positron colliders. With a streak camera, the transverse blowup along the bunch train was first observed in an experiment at the Beijing Electron-Positron Collider (BEPC) and the simulation results were used to compare with the observation.
