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TY - CONF AU - Jowett, J.M. AU - Bahamonde Castro, C. AU - Bartmann, W. AU - Bracco, C. AU - Bruce, R. AU - Coello de Portugal, J.M. AU - Dilly, J. AU - Fartoukh, S.D. AU - Fol, E. AU - Fuster-Martínez, N. AU - Garcia-Tabares, A. AU - Hofer, M. AU - Holzer, E.B. AU - Jebramcik, M.A. AU - Keintzel, J. AU - Lechner, A. AU - Maclean, E.H. AU - Malina, L. AU - Medvedeva, T. AU - Mereghetti, A. AU - Mirarchi, D. AU - Persson, T.H.B. AU - Petersen, B.Aa. AU - Redaelli, S. AU - Salvachua, B. AU - Schaumann, M. AU - Schwick, C. AU - Solfaroli, M. AU - Spitznagel, M.L. AU - Timko, H. AU - Tomás, R. AU - Wegscheider, A. AU - Wenninger, J. AU - Wollmann, D. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - The 2018 Heavy-Ion Run of the LHC J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - The fourth one-month Pb-Pb collision run brought LHC Run 2 to an end in December 2018. Following the tendency to reduce dependence on the configuration of the preceding proton run, a completely new optics cycle with the strongest ever focussing at the ALICE and LHCb experiments was designed and rapidly implemented, demonstrating the maturity of the collider’s operating modes. Beam-loss monitor thresholds were carefully adjusted to provide optimal protection from the multiple loss mechanisms in heavy-ion operation. A switch from a basic bunch-spacing of 100 ns to 75 ns was made as the beam became available from the injector chain. A new record luminosity, 6 times the original design and close to the operating value proposed for HL-LHC, provided validation of the strategy for mitigating quenches due to bound-free pair production (BFPP) at the interaction points of the ATLAS and CMS experiments. Most of the beam parameters of the HL-LHC Pb-Pb upgrade were attained during this run and the integrated luminosity goals for the first 10 years of LHC operation were substantially exceeded. PB - JACoW Publishing CP - Geneva, Switzerland SP - 2258 EP - 2261 KW - luminosity KW - heavy-ion KW - optics KW - experiment KW - proton DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-WEYYPLM2 UR - http://jacow.org/ipac2019/papers/weyyplm2.pdf ER -