THPC60

Journals of Accelerator Conferences Website (JACoW)

JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelator conferences held around the world by an international collaboration of editors.

URL	https://doi.org/10.18429/JACoW-IPAC2024-THPC60
Title	Studies and mitigation of TMCI in FCC-ee
Authors	M. Migliorati Istituto Nazionale di Fisica Nucleare - Sez. Roma 1 C. Zannini, C. Antuono European Organization for Nuclear Research D. Gibellieri Sapienza University of Rome M. Zobov, M. Behtouei Istituto Nazionale di Fisica Nucleare R. SOOS Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Y. Zhang Institute of High Energy Physics
Abstract	Previous studies have identified turbulent mode coupling instability (TMCI) as one of the most severe single-bunch instabilities in the FCC-ee collider, potentially limiting its performance. Its threshold is influenced by both transverse and longitudinal wakefields arising from vacuum chamber resistive wall effects, discontinuities, and beam-beam interactions, the latter of which can be seen as a transverse cross-wake force. In this paper, we investigate the TMCI using the most recent collider parameters and an updated impedance model. We also explore various mitigation techniques aimed at increasing the instability threshold, including positive chromaticity and a feedback system.
Paper	download: THPC60.pdf
Cite	BibTeX, LaTeX, Text/Word, RIS, EndNote
Conference	15th International Particle Accelerator Conference
Series
Location	Nashville, TN
Date	19-24 May 2024
Publisher	JACoW Publishing, Geneva, Switzerland
Editorial Board	Fulvia Pilat - Oak Ridge National Laboratory Wolfram Fischer - Brookhaven National Laboratory Robert Saethre - Oak Ridge National Laboratory Petr Anisimov - Los Alamos National Laboratory Ivan Andrian - Elettra-Sincrotrone Trieste S.C.p.A.
Online ISBN	978-3-95450-247-9
Online ISSN	2673-5490
Received	08 May 2024
Revised	20 May 2024
Accepted	21 May 2024
Issued	01 July 2024
DOI	10.18429/JACoW-IPAC2024-THPC60
Pages	3151-3154
Copyright	Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI.