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TY - CONF AU - Redaelli, S. AU - Abramov, A. AU - Baillard, D.B. AU - Bruce, R. AU - Cai, R. AU - Carra, F. AU - D’Andrea, M. AU - Di Castro, M. AU - Giacomel, L. AU - Hermes, P.D. AU - Lindström, B. AU - Mirarchi, D. AU - Mounet, N. AU - Nuiry, F.-X. AU - Perillo Marcone, A. AU - Van der Veken, F.F. AU - Vella, A. ED - Cai, Yunhai ED - Nagaitsev, Sergei ED - Kim, Dong Eon ED - Marx, Michaela ED - Schaa, Volker R. W. TI - Collimation of 400 MJ Beams at the LHC: The First Step Towards the HL-LHC Era J2 - Proc. of HB2023, Geneva, Switzerland, 09-13 October 2023 CY - Geneva, Switzerland T2 - ICFA Advanced Beam Dynamics Workshop on High-Intensity and High-Brightness Hadron Beams T3 - 68 LA - english AB - An important upgrade programme is planned for the collimation system of the CERN Large Hadron Collider (LHC) in order to meet the challenges of the upcoming High-Luminosity LHC (HL-LHC) project. A first stage of the HL-LHC upgrade was already deployed during the last LHC Long Shutdown, offering important improvements of the collimation cleaning, a significant reduction of the impedance contribution and better cleaning of collisional debris, in particular for ion-ion collisions. This upgrade provides a critical opportunity to explore the LHC intensity limits during the LHC Run 3 and can provide crucial feedback to refine upgrade plans and operational scenarios in the HL-LHC era. This paper describes the performance of the upgraded LHC collimation system that has already enabled stored-beam energies larger than 400 MJ at the unprecedented beam energy of 6.8 TeV, and reviews further upgrade plans envisaged to reach 700 MJ beams at the HL-LHC. PB - JACoW Publishing CP - Geneva, Switzerland SP - 603 EP - 606 KW - collimation KW - proton KW - luminosity KW - operation KW - impedance DA - 2024/04 PY - 2024 SN - 2673-5571 SN - 978-3-95450-253-0 DO - doi:10.18429/JACoW-HB2023-THBP49 UR - https://jacow.org/hb2023/papers/thbp49.pdf ER -