CERN Accelerating science

Published Articles
Report number	arXiv:2003.10009
Title	Study of collective effects in the CERN FCC-ee top-up booster
Author(s)	Quartullo, D. (INFN, Rome) ; Migliorati, M. (Rome U. ; INFN, Rome) ; Zobov, M. (Frascati)
Publication	2020-12-16
Imprint	2020-03-22
Number of pages	6
In:	ICFA mini-Workshop on Mitigation of Coherent Beam Instabilities in Particle Accelerators (MCBI 2019), Zermatt, Switzerland, 23 - 27 Sep 2019, pp.362 (CERN-2020-009)
DOI	10.23732/CYRCP-2020-009.362
Subject category	physics.acc-ph ; Accelerators and Storage Rings ; Accelerators and Storage Rings
Accelerator/Facility, Experiment	CERN FCC
Abstract	The CERN FCC-ee top-up booster synchrotron will accelerate electrons and positrons from an injection energy of 20 GeV up to an extraction energy between 45.6 GeV and 182.5 GeV depending on the operation mode. These accelerated beams will be used for the initial filling of the high-luminosity FCC-ee collider and for keeping the beam current constant over time using continuous top-up injection. Due to the high-intensities of the circulating beams, collective effects may represent a limitation in the top-up booster. In this work we present a first evaluation of the impedance model and the effects on beam dynamics. Methods to mitigate possible instabilities will be also discussed.
Copyright/License	preprint: (License: arXiv nonexclusive-distrib 1.0) publication: © 2020-2025 CERN (License: CC-BY-4.0)

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