Abstract
New large aperture Inner Triplet quadrupoles,separation dipoles and the nearby matching quadrupoles will be installed in the low-beta interaction regions (IR) of the high luminosity LHC upgrade (HL-LHC) [1]. The large aperture is necessary for accommodating the increased beam size due to much higher beta functions in these magnets for the low � � collision optics. The high beta functions will amplify the effects of field errors in the new magnets leading to a smaller dynamic aperture(DA). It is, therefore,critical to evaluate the impact of these errors on the DA and specify the magnet field quality (FQ) satisfying an acceptable DA while being realistically achievable. The study is performedfor the HL-LHC lattice layoutsSLHCV3.1b and HLLHCV1.0 for collision and injection energies.
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