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TY - CONF AU - Leban, P. AU - Bogataj, L. AU - Brill, A.R. AU - Cargnelutti, M. AU - Carwardine, J. AU - Cheng, W.X. AU - Dragonja, U. AU - Paglovec, P. AU - Sereno, N. ED - Liu, Lin ED - Byrd, John M. ED - Neuenschwander, Regis T. ED - Picoreti, Renan ED - Schaa, Volker R. W. TI - New RF BPM Electronics for the 560 Beam Position Monitors of the APS-U Storage Ring J2 - Proc. of IPAC2021, Campinas, SP, Brazil, 24-28 May 2021 CY - Campinas, SP, Brazil T2 - International Particle Accelerator Conference T3 - 12 LA - english AB - Within the upgrade of the APS storage ring to a multi-bend achromat lattice, 560 RF Beam Position Monitors will be required. The projected beam sizes are below 10 microns in both horizontal and vertical planes, putting stringent requirements on the BPM electronics resolution, long-term stability, beam current dependency, and instrument reproducibility. For the APS-U project, the Libera Brilliance⁺ instrument has been upgraded in technology and capabilities, including the independent multi-bunch turn-by-turn processing and an improved algorithm to further reduce the crossbar-switch artifacts. More than 140 instruments, equipped with 4 BPM electronics each, are being delivered to Argonne National Laboratory, consisting of the largest scale production for Instrumentation Technologies. In this contribution, the extensive test conditions to which the instruments were exposed and their results will be presented, as well as the beam-based long-term drift measurements with different fill patterns. PB - JACoW Publishing CP - Geneva, Switzerland SP - 4325 EP - 4328 KW - storage-ring KW - electron KW - electronics KW - site KW - instrumentation DA - 2021/08 PY - 2021 SN - 2673-5490 SN - 978-3-95450-214-1 DO - doi:10.18429/JACoW-IPAC2021-THPAB265 UR - https://jacow.org/ipac2021/papers/thpab265.pdf ER -