JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
TY - UNPB AU - Redaelli, S. ED - Gianfelice, Eliana ED - Nagaitsev, Sergei ED - Kim, Dong Eon ED - Marx, Michaela ED - Schaa, Volker R. W. TI - HL-LHC: Project Status and Beam Dynamics Challenges J2 - Proc. of HB2021, Batavia, IL, USA, 04-08 October 2021 CY - Batavia, IL, USA T2 - ICFA Advanced Beam Dynamics Workshop on High-Intensity and High-Brightness Hadron Beams T3 - 64 LA - english AB - The Large Hadron Collider (LHC) at CERN has been producing physics data since 2010. It will be upgraded in the years 2025-27 to sustain and further extend its physics discovery potential. The High-luminosity LHC upgrade (HL-LHC) targets at least a factor five increase of peak luminosity, and a ten-fold improvement of integrated luminosity, compared to the LHC design. To achieve this, the HL-LHC beams are two times more intense and more than five times brighter. These ambitious goals pose obvious beam dynamics challenges that will be addressed through several upgrades of the LHC accelerator. The HL-LHC will use high-field superconducting magnets based on Nb₃Sn for the final beam focusing, crab cavities to optimize luminosity conditions, a new generation of collimators that withstand the higher operational beam losses while reducing the beam impedance, hollow electron lenses for active halo control as well as crystal collimators for improved cleaning efficiency for heavy-ion beams. This advances the LHC state-of-the-art accelerator technology in various domains. This contribution reviews the plans and status of the HL-LHC upgrade and the main challenges associated with this project. PB - JACoW Publishing CP - Geneva, Switzerland ER -