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TY - CONF AU - Cruz Alaniz, E. AU - Abelleira, J.L. AU - Martin, R. AU - Seryi, A. AU - Tomás, R. AU - van Riesen-Haupt, L. ED - Koscielniak, Shane ED - Satogata, Todd ED - Schaa, Volker RW ED - Thomson, Jana TI - Methods to Increase the Dynamic Aperture of the FCC-hh Lattice J2 - Proc. of IPAC2018, Vancouver, BC, Canada, 29 April-04 May 2018 CY - Vancouver, BC, Canada T2 - International Particle Accelerator Conference T3 - 9 LA - english AB - The Future Circular Collider (FCC) design study aims to develop the designs of possible circular colliders in the post LHC era. In particular the FCC-hh will aim to produce proton-proton collisions at a center of mass energy of 100 TeV. Initial tracking studies for the FCC-hh lattice at collision energy including field errors on the final focus triplet showed a very low dynamic aperture, most likely affected by the large beta functions and integrated length of the quadrupoles. Using non-linear correctors, the dynamic aperture was increased to acceptable levels; however, the difficulty to have an accurate magnetic model of the magnets required for this correction motivates the development of alternative methods. This work explores the possibility to increase the dynamic aperture by optimizing the phase advance between the main interaction regions. The description of this method along with its impact on the dynamic aperture will be given on this paper. PB - JACoW Publishing CP - Geneva, Switzerland SP - 3593 EP - 3596 KW - lattice KW - dynamic-aperture KW - luminosity KW - quadrupole KW - interaction-region DA - 2018/06 PY - 2018 SN - 978-3-95450-184-7 DO - DOI: 10.18429/JACoW-IPAC2018-THPAK145 UR - http://jacow.org/ipac2018/papers/thpak145.pdf ER -