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TY - CONF AU - Li, K.S.B. AU - Bartosik, H. AU - Beck, M.S. AU - Bjørsvik, E.R. AU - Dusatko, J.E. AU - Fox, J.D. AU - Höfle, W. AU - Kotzian, G. AU - Levens, T.E. AU - Rivetta, C.H. AU - Schenk, M. AU - Turgut, O. ED - Schaa, Volker RW TI - Recent Results from the Wideband Feedback System Tests at the SPS and Future Plans J2 - Proc. of HB2018, Daejeon, Korea, 17-22 June 2018 C1 - Daejeon, Korea T2 - ICFA Advanced Beam Dynamics Workshop T3 - 61 LA - english AB - A high bandwidth transverse feedback demonstrator system has been devised within the LARP framework in collaboration with SLAC for the LHC Injectors Upgrade (LIU) Project. The initial system targeted the Super Proton Synchrotron (SPS) at CERN to combat TMCI and electron cloud instabilities induced for bunches with bunch lengths at the 100 MHz scale. It features a very fast digital signal processing system running at up to 4~GS/s and high bandwidth kickers with a frequency reach of ultimately beyond 1~GHz. In recent years, the system has gradually been extended and now includes two stripline kickers for a total power of 1~kW delivering correction signals at frequencies of currently more than 700~MHz. This talk will cover recent studies using this demonstrator system to overcome TMCI limitations in the SPS. We will conclude with future plans and also briefly mention potential applications and requirements for larger machines such as the LHC or the HL-LHC. PB - JACoW Publishing CP - Geneva, Switzerland SP - 38 EP - 42 KW - feedback KW - optics KW - kicker KW - coupling KW - controls DA - 2018/07 PY - 2018 SN - 978-3-95450-202-8 DO - 10.18429/JACoW-HB2018-MOP2WA04 UR - http://jacow.org/hb2018/papers/mop2wa04.pdf ER -