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TY - CONF AU - Santamaría García, A. AU - Burkhardt, H. AU - Hernandez-Chahin, K. AU - Macpherson, A. AU - Sjobak, K.N. AU - Wollmann, D. AU - Yee-Rendón, B. ED - Henderson, Stuart ED - Akers, Evelyn ED - Satogata, Todd ED - Schaa, Volker R.W. TI - Limits on Failure Scenarios for Crab Cavities in the HL-LHC J2 - Proc. of IPAC2015, Richmond, VA, USA, May 3-8, 2015 C1 - Richmond, VA, USA T2 - International Particle Accelerator Conference T3 - 6 LA - english AB - The High Luminosity (HL) LHC upgrade aims for a tenfold increase in integrated luminosity compared to the nominal LHC, and for operation at a levelled luminosity of 5 10³⁴ cm⁻².s⁻¹, which is five times higher than the nominal LHC peak luminosity. Crab Cavities (CCs) are planned to compensate the geometric luminosity loss created by the increased crossing angle by rotating the bunch, allowing quasi head-on collisions at the Interaction Points (IP). The CCs work by creating transverse kicks, and their failure may have short time constants comparable to the reaction time of the Machine Protection System (MPS), producing significant coherent betatron oscillations and fast emittance growth. Simulations of CC failure modes have been carried out with the tracking code SIXTRACK, using the newly added functionality called DYNK, which allows to dynamically change the attributes of the CCs. We describe these simulations and discuss early, preliminary results. PB - JACoW CP - Geneva, Switzerland SP - 3923 EP - 3926 KW - simulation KW - luminosity KW - optics KW - collimation KW - beam-losses DA - 2015/06 PY - 2015 SN - 978-3-95450-168-7 DO - 10.18429/JACoW-IPAC2015-THPF095 UR - http://jacow.org/ipac2015/papers/thpf095.pdf ER -