The MQXFA Quadrupole magnets will be installed in High Luminosity LHC to form the Q1 and Q3 inner triplet optical elements in front of the interaction points 1 (ATLAS) and 5 (CMS). A pair of MQXFA units is assembled in a stainless steel helium vessel, including the end domes, to make the Q1 Cold Mass or the Q3 Cold Mass. The US HL LHC Accelerator Upgrade Project* is responsible for the design, manufacturing and test of the Q1/Q3 Cold Masses and the complete MQXFA magnets. CERN provides the cryostat components and is responsible for integration and installation in HL LHC. The MQXFA quadrupoles have 150 mm aperture, 4.2 m magnetic length, nominal gradient of 132.2 T/m, and coil peak field of 11.3 T. They use Nb_3Sn conductor and a support structure made of segmented aluminum shells pre-loaded by using bladders and keys. This report presents the final design of the MQXFA quadrupole magnets. *Supported by the U.S. Department of Energy, Office of Science, Office of High Energy Physics
Cite
@article{arxiv.2203.06723,
title = {MQXFA Final Design Report},
author = {Giorgio Ambrosio and Kathleen Amm and Mike Anerella and Giorgio Apollinari and Maria Baldini and Anis Ben Yahia and James Blowers and Ruben Carcagno and Daniel Cheng and Guram Chlachidze and Lance Cooley and Sandor Feher and Paolo Ferracin and Henry Hocker and Susana Izquierdo Bermudez and Piyush Joshi and Vito Lombardo and Vittorio Marinozzi and Joseph Muratore and Michael Naus and Fred Nobrega and Heng Pan and Marcellus Parker and Ian Pong and Soren Prestemon and Emmanuele Ravaioli and Katherine L. Ray and GianLuca Sabbi and Jesse Schmalzle and Ezio Todesco and Melanie Turenne and Miao Yu},
journal= {arXiv preprint arXiv:2203.06723},
year = {2022}
}