TUPM119

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URL	https://doi.org/10.18429/JACoW-IPAC2023-TUPM119
Title	Collimation performance of the 400MJ LHC beam at 6.8 TeV
Authors	F. Van der Veken, A. Abramov, G. Azzopardi, R. Bruce, M. D'Andrea, K. Dewhurst, A. Frasca, P. Hermes, B. Lindstrom, D. Mirarchi, S. Redaelli, F. Ziliotto, D. Demetriadou European Organization for Nuclear Research G. Broggi La Sapienza University of Rome R. Cai Ecole Polytechnique Fédérale de Lausanne
Abstract	During the third operational run of the Large Hadron Collider at CERN, starting in 2022, the beam energy was increased to 6.8 TeV and the bunch population is planned to be pushed to unprecedented levels. Already in the first year of operation, beam stored energies up to 400 MJ were achieved. An improvement in cleaning performance of the LHC collimation system is hence required. In this paper we review the collimation system performance during 2022, and compare it to previous years. Particular attention is put on the performance during $\beta^*$-levelling, which is part of the nominal cycle in Run 3. The performance of the automatic alignment tools is also discussed. Finally, we review the stability of the collimation system, which was monitored regularly during the run for all machine configurations to ensure the continued adequate functionality of the system.
Paper	download: TUPM119.pdf
Cite	BibTeX, LaTeX, Text/Word, RIS, EndNote
Conference	14th International Particle Accelerator Conference
Series
Location	Venice, Italy
Date	07-12 May 2023
Publisher	JACoW Publishing, Geneva, Switzerland
Editorial Board	Ralph Assmann - Deutsches Elektronen-Synchrotron DESY Peter McIntosh - Science and Technology Facilities Council (STFC/DL/ASTeC) Giovanni Bisoffi - Istituto Nazionale di Fisica Nucleare (INFN/LNL) Alessandro Fabris - Elettra-Sincrotrone Trieste S.C.p.A. Ivan Andrian - Elettra-Sincrotrone Trieste S.C.p.A. Giulia Vinicola - Istituto Nazionale di Fisica Nucleare (INFN/LNF)
Online ISBN	978-3-95450-231-8
Online ISSN	2673-5490
Received	03 May 2023
Revised	12 May 2023
Accepted	20 June 2023
Issued	26 September 2023
DOI	10.18429/JACoW-IPAC2023-TUPM119
Pages	2499-2502
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.