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TY - CONF AU - Barnes, M.J. AU - Bracco, C. AU - Bregliozzi, G. AU - Chmielinska, A. AU - Ducimetière, L. AU - Goddard, B. AU - Kramer, T. AU - Neupert, H. AU - Vega Cid, L. AU - Vlachodimitropoulos, V. AU - Weterings, W.J.M. AU - Yin Vallgren, C. ED - Koscielniak, Shane ED - Satogata, Todd ED - Schaa, Volker RW ED - Thomson, Jana TI - An Upgraded LHC Injection Kicker Magnet J2 - Proc. of IPAC2018, Vancouver, BC, Canada, April 29-May 4, 2018 C1 - Vancouver, BC, Canada T2 - International Particle Accelerator Conference T3 - 9 LA - english AB - An upgrade of the LHC injection kickers is necessary for HL-LHC to avoid excessive beam induced heating of these magnets: the intensity of the HL-LHC beam will be twice that of LHC. In addition, in the event that it is necessary to exchange an injection kicker magnet, the newly installed kicker magnet would limit HL-LHC operation for a few hundred hours due to dynamic vacuum activity. Extensive studies have been carried out to identify practical solutions to these problems: these include redistributing a significant portion of the beam induced power deposition to ferrite parts of the kicker magnet which are not at pulsed high voltage and water cooling of these parts. Furthermore a surface coating, to mitigate dynamic vacuum activity, has been selected. The results of these studies, except for water cooling, have been implemented on an upgraded LHC injection kicker magnet: this magnet was installed in the LHC during the 2017-18 Year End Technical Stop. This paper presents the upgrades, including some test and measurement results. PB - JACoW Publishing CP - Geneva, Switzerland SP - 2632 EP - 2635 KW - kicker KW - injection KW - vacuum KW - electron KW - impedance DA - 2018/06 PY - 2018 SN - 978-3-95450-184-7 DO - 10.18429/JACoW-IPAC2018-WEPMK003 UR - http://jacow.org/ipac2018/papers/wepmk003.pdf ER -