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TY - CONF AU - Métral, E. AU - Amorim, D. AU - Arduini, G. AU - Bartosik, H. AU - Benedetto, E. AU - Burkhardt, H. AU - Li, K.S.B. AU - Oeftiger, A. AU - Quatraro, D. AU - Rumolo, G. AU - Salvant, B. AU - Zannini, C. ED - Schaa, Volker RW ED - Makino, Kyoko ED - Snopok, Pavel ED - Berz, Martin TI - Space Charge and Transverse Instabilities at the CERN SPS and LHC J2 - Proc. of ICAP2018, Key West, FL, USA, 20-24 October 2018 CY - Key West, FL, USA T2 - International Computational Accelerator Physics Conference T3 - 13 LA - english AB - At the CERN accelerator complex, it seems that only the highest energy machine in the sequence, the LHC, with space charge (SC) parameter close to one, sees the predicted beneficial effect of SC on transverse coherent instabilities. In the other circular machines of the LHC injector chain (PSB, PS and SPS), where the SC parameter is much bigger than one, SC does not seem to play a major (stabilising) role, and it is maybe the opposite in the SPS. All the measurements and simulations performed so far in both the SPS and LHC will be reviewed and analysed in detail. PB - JACoW Publishing CP - Geneva, Switzerland SP - 80 EP - 86 KW - coupling KW - simulation KW - optics KW - space-charge KW - impedance DA - 2019/01 PY - 2019 SN - 978-3-95450-200-4 DO - DOI: 10.18429/JACoW-ICAP2018-SUPAG01 UR - http://jacow.org/icap2018/papers/supag01.pdf ER -