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TY - CONF AU - Sugimoto, H. AU - Koiso, H. AU - Morita, A. AU - Ohnishi, Y. AU - Oide, K. AU - Zhou, D. ED - Schaa, Volker RW ED - Arduini, Gianluigi ED - Pranke, Juliana ED - Seidel, Mike ED - Lindroos, Mats TI - Optimization of Dynamic Aperture with Constraints on Linear Chromaticity J2 - Proc. of IPAC2017, Copenhagen, Denmark, 14â19 May, 2017 C1 - Copenhagen, Denmark T2 - International Particle Accelerator Conference T3 - 8 LA - english AB - This paper presents numerical technique to optimize dynamic aperture with constraints on linear chromaticity of optical functions. By solving a set of linear equations at each iteration step of dynamic aperture optimization, the linear chromaticity is kept unchanged. The variable range of tuning knobs is taken into account in order to make the technique applicable to practical use. Numerical simulations assuming the SuperKEKB design lattice are performed, and it is demonstrated that the dynamic aperture obtained with the presented scheme is almost comparable to that without constraints. Luminosity simulations assuming weak-strong model show that the constraints lead to improvements of luminosity performance. PB - JACoW CP - Geneva, Switzerland SP - 705 EP - 707 KW - luminosity KW - sextupole KW - coupling KW - simulation KW - lattice DA - 2017/05 PY - 2017 SN - 978-3-95450-182-3 DO - 10.18429/JACoW-IPAC2017-MOPIK076 UR - http://jacow.org/ipac2017/papers/mopik076.pdf ER -