CERN Accelerating science

Article
Title	Emittance Estimates for the Future Circular Collider
Related title	EMITTANCE ESTIMATES FOR THE FUTURE CIRCULAR COLLIDER
Author(s)	van Riesen-Haupt, Léon (CERN) ; Charles, Tessa K (Liverpool U.) ; Tomás García, Rogelio (CERN) ; Zimmermann, Frank (CERN)
Publication	Geneva : JACoW, 2021
Number of pages	4
In:	JACoW IPAC 2021 (2021) 1338-1341
In:	12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.1338-1341
DOI	10.18429/JACoW-IPAC2021-TUPAB005 (publication)
Subject category	Accelerators and Storage Rings
Abstract	The alignment strategy of the FCC-ee has a large impact on its luminosity. Larger alignment tolerances result in increased coupling and a subsequently higher vertical emittance. At the same time, tighter alignment tolerances around the 100 km ring are a major cost driver. This paper applies analytical emittance estimate methods to the FCC-ee and compares their predictions to data from simulations with different alignment tolerances. These methods can be used to help understand the impact of misalignments of certain magnet groups and to come up with an efficient alignment strategy.
Copyright/License	publication: © 2021 (License: CC-BY-3.0)

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