EIC Crab Cavity Multipole Analysis and Their Effects on Dynamic Aperture
Jul 19, 2022
4 pages
Published in:
- JACoW IPAC2022 (2022) 66-69
Contribution to:
- , 66-69
- IPAC 2022
- Published: Jul 19, 2022
Citations per year
Abstract: (JACoW)
Crab cavity is essential for retrieving the loss in luminosity due to the large crossing angle in the two colliding beam lines of the Electron Ion Collider (EIC). Due to the asymmetric design of the proton beam crab cavity, the fundamental mode consists of contributions from higher order multipoles. These multipole modes may change during fabrication and installation of the cavities, and therefore affect the local dynamic aperture. Thresholds for each order of the multipoles are applied to ensure dynamic aperture requirements at these crab cavities. In this paper, we analyzed the strength of the multipoles due to fabrication and installation accuracies, and set limitations to each procedure to maintain the dynamic aperture requirement.- cavity
- multipole
- dynamic-aperture
- luminosity
- collider
- beam: width
- cavity: rotation
- electron nucleus: colliding beams
- p: beam
- electromagnetic field: multipole
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