FRAC2

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URL	https://doi.org/10.18429/JACoW-IBIC2024-FRAC2
Title	BGC monitor: first year of operation at the LHC
Authors	H. Zhang, O. Stringer Cockcroft Institute A. Rossi, C. Sequeiro, D. Butti, G. Schneider, K. Sidorowski, M. Ady, M. Sameed, R. Veness, S. Mazzoni, T. Lefevre European Organization for Nuclear Research C. Pasquinom CERN C. Welsch, O. Sedlacek The University of Liverpool P. Forck, S. Udrea GSI Helmholtzzentrum für Schwerionenforschung GmbH S. Sethi University of Liverpool
Abstract	The Beam Gas Curtain (BGC) monitor was installed in the beam one of the Large Hadron Collider (LHC) during Long Shutdown 2 (LS2) and the Year-End Technical Stop (YETS) 2022. The monitor detects the fluorescence signal generated due to the interaction between the charged particle beams in the LHC and the neon atoms in the supersonic gas curtain. This provides 2D images of the primary beam. In the 2023 run, it was demonstrated that transverse beam profile measurement for both, proton beam and lead ion beams in the LHC is possible across injection, energy ramp-up and top energy operation. The BGC has shown the potential to be an operational instrument and efforts to integrate the monitor into the main machine control system are being undertaken. In this contribution, we will present measurement results and discuss the operational experience including observed gas loads to the LHC, observed impact on beam losses and demonstrated resolution of the monitor. Finally, we will also discuss future plans for the continued optimization of this monitor and the installation of a second monitor into beam two.
Paper	download: FRAC2.pdf
Cite	BibTeX, LaTeX, Text/Word, RIS, EndNote
Conference	Proc. 13th International Beam Instrumentation Conference
Series
Location	Beijing
Date	09-13 Sep 2024
Publisher	JACoW Publishing, Geneva, Switzerland
Editorial Board	Jianshe Cao (IHEP), Junhui Yue (IHEP), Lin Bian (IHEP), Ivan Andrian (Elettra-Sincrotrone Trieste S.C.p.A.), Volker RW Schaa (GSI), Zhichu Chen (SARI)
Online ISBN	978-3-95450-249-3
Online ISSN	2673-5350
Received	05 September 2024
Revised	07 September 2024
Accepted	08 September 2024
Issued	11 December 2024
DOI	10.18429/JACoW-IBIC2024-FRAC2
Pages	661-663
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.