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TY - CONF AU - Valette, M. AU - Bortot, L. AU - Fernandez Navarro, A.M. AU - Lindstrom, B. AU - Schmidt, R. AU - Verweij, A.P. AU - Wollmann, D. ED - Schaa, Volker RW ED - Arduini, Gianluigi ED - Pranke, Juliana ED - Seidel, Mike ED - Lindroos, Mats TI - Effect of Quench Heater and CLIQ Firing on the Circulating HL-LHC Beam J2 - Proc. of IPAC2017, Copenhagen, Denmark, 14â19 May, 2017 C1 - Copenhagen, Denmark T2 - International Particle Accelerator Conference T3 - 8 LA - english AB - A small vertical orbit oscillation of the LHC beam was observed following a quench of a main dipole magnet. This effect was thought to be caused by the current dis-charged in the quench heater (QH) strips of the superconducting magnet and confirmed in dedicated experiments with beam in the LHC. Quench heater connection schemes with the largest effect have been identified for the LHC and its future HiLumi upgrade (HL-LHC). Furthermore, the impact on the beam following discharges of the Coupling-Loss Induced Quench (CLIQ) system, a novel technology to protect high current superconducting magnets in case of a quench, was studied to evaluate the possible failure cases. PB - JACoW CP - Geneva, Switzerland SP - 2101 EP - 2104 KW - dipole KW - quadrupole KW - simulation KW - collimation KW - superconducting-magnet DA - 2017/05 PY - 2017 SN - 978-3-95450-182-3 DO - 10.18429/JACoW-IPAC2017-TUPVA023 UR - http://jacow.org/ipac2017/papers/tupva023.pdf ER -