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URLhttps://doi.org/10.18429/JACoW-IPAC2025-WEPM086
TitleLHC beam-beam wire compensator impedance contribution
Authors
  • L. Sito, G. Breglio
    University of Naples Federico II
  • B. Salvant, C. Zannini, F. Fienga, G. Sterbini
    European Organization for Nuclear Research
  • V. Marrazzo
    European Organization for Nuclear Research, University of Naples Federico II
AbstractThe mitigation of long-range beam-beam interactions remains a critical challenge for maximizing the luminosity performance of the Large Hadron Collider (LHC). Previous experimental studies have demonstrated that long-range beam-beam wire compensation can effectively counteract long range beam-beam interactions, leading to enhanced beam lifetime and increased integrated luminosity. A direct-current (DC) wire compensator has been successfully prototyped and thermo-mechanically validated at reduced scale. This investigation provides a characterization of the beam-coupling impedance contributions of the proposed compensator device, quantifying both beam-induced heating and implications for beam stability. Critical aspects of the design have been identified and impedance reduction strategies have been applied, taking into consideration constraints due to compatibility requirements with existing LHC systems during the High-Luminosity LHC (HL-LHC) phase. The study shows that, while further optimizations may be pursued, no fundamental impedance-related showstoppers have been identified for the implementation of wire compensation.
Paperdownload: WEPM086.pdf
CiteBibTeX, LaTeX, Text/Word, RIS, EndNote
Conference16th International Particle Accelerator Conference
Series
LocationTaipei, Taiwan
Date01-06 Jun 2025
PublisherJACoW Publishing, Geneva, Switzerland
Editorial Board* Ming-Chyuan Lin - National Synchrotron Radiation Research Center * Yoichi Sato - KEK * Jui-Che Huang - National Synchrotron Radiation Research Center * David Button - Australian Nuclear Science and Technology Organisation * Ping-Shun Chuang - National Synchrotron Radiation Research Center
Online ISBN978-3-95450-248-6
Online ISSN2673-5490
Received27 May 2025
Revised02 June 2025
Accepted02 June 2025
Issued05 November 2025
DOI10.18429/JACoW-IPAC2025-WEPM086
Pages2176-2179