Distortion of Crabbed Bunch Due to Electron Cloud and Global Crabbing.

Wang, L. ; Raubenheimer, T. O. ; Cai, Y.

Technical Information Center Oak Ridge Tennessee

关键词: Accelerators;    Electrons;    Clouds;    Colliding beams;    Cavities;   

RP-ID  :  DE2008935693

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

Crab cavities may be used improve the luminosity in colliding beam colliders with crab crossing. In a global crab crossing correction, only one crab cavity is installed in each ring and the crab cavities generate a horizontally titled bunch oscillating around the ring. The electron cloud in positively charged rings may distort the crabbed bunch and cause the luminosity drop. This paper briefly estimates the distortion of positron bunch due to the electron cloud with global crab and estimates the effect in the KEKB and possible LHC upgrades.