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 - CONF AU - Tomás García, R. AU - Carlier, F.S. AU - Deniau, L. AU - Dilly, J. AU - Keintzel, J. AU - Kostoglou, S. AU - Le Garrec, M. AU - Maclean, E.H. AU - Paraschou, K. AU - Persson, T.H.B. AU - Soubelet, F. AU - Wegscheider, A. ED - Cai, Yunhai ED - Nagaitsev, Sergei ED - Kim, Dong Eon ED - Marx, Michaela ED - Schaa, Volker R. W. TI - Optics for Landau Damping with Minimized Octupolar Resonances in the LHC 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 - Operation of the Large Hadron Collider (LHC) requires strong octupolar magnetic fields to suppress coherent beam instabilities. The amplitude detuning that is generated by these octupolar magnetic fields brings the tune of individual particles close to harmful resonances, which are mostly driven by the octupolar fields themselves. In 2023, new optics were deployed in the LHC at injection with optimized betatronic phase advances to minimize the resonances from the octupolar fields without affecting the amplitude detuning. This paper reports on the optics design, commissioning and the lifetime measurements performed to validate the optics. PB - JACoW Publishing CP - Geneva, Switzerland SP - 503 EP - 506 KW - optics KW - resonance KW - octupole KW - injection KW - focusing DA - 2024/04 PY - 2024 SN - 2673-5571 SN - 978-3-95450-253-0 DO - doi:10.18429/JACoW-HB2023-THBP20 UR - https://jacow.org/hb2023/papers/thbp20.pdf ER -