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TY - CONF AU - Dejus, R.J. AU - Cease, H. AU - Collins, J.T. AU - Decker, G. AU - DiMarco, J. AU - Donnelly, A.T. AU - Doose, C.L. AU - Jain, A.K. AU - Jansma, W.G. AU - Jaski, M.S. AU - Liu, J. ED - Schaa, Volker RW ED - Power, Maria ED - Shiltsev, Vladimir ED - White, Marion TI - Magnetic Measurements of Storage Ring Magnets for the APS Upgrade Project J2 - Proc. of NAPAC2016, Chicago, IL, USA, October 9-14, 2016 C1 - Chicago, IL, USA T2 - North American Particle Accelerator Conference T3 - 3 LA - english AB - Extensive prototyping of storage ring magnets is ongoing at the Advanced Photon Source (APS) in support of the APS Multi-Bend Achromat upgrade (APS-U) project. As part of the R&D activities 4 quadrupole magnets with slightly different geometries and pole tip materials, and one sextupole magnet with vanadium permendur pole tips were designed, built and tested. Magnets were measured individually using a rotating coil and a Hall probe for detailed mapping of the magnetic field. Magnets were then assembled and aligned relative to each other on a steel support plate and concrete plinth using precision machined surfaces to gain experience with the alignment method chosen for the APS-U storage ring magnets. The required alignment of magnets on a common support structure is 30 micron rms. Measurements of magnetic field quality, strength and magnet alignment after subjecting the magnets and assemblies to different tests will be presented. PB - JACoW CP - Geneva, Switzerland SP - 884 EP - 886 KW - ion KW - alignment KW - quadrupole KW - MMI KW - sextupole DA - 2017/01 PY - 2017 SN - 978-3-95450-180-9 DO - 10.18429/JACoW-NAPAC2016-WEPOB03 UR - https://jacow.org/napac2016/papers/wepob03.pdf ER -