2012/07/16 by Hugo Day, Michael Barnes, Day, Hugo +9
Physics and Astronomy · #Accelerator Physics (physics.acc-ph) #FOS: Physical sciences #physics.acc-ph
paper · pdf · doi:10.48550/arxiv.1207.3672
arxiv created 2012/07/16 · arxiv updated 2012/07/17
During the 2011 run of the LHC there was a significant measured temperature increase in the LHC Injection Kicker Magnets (MKI) during operation with 50ns bunch spacing. This was due to increased beam-induced heating of the magnet due to beam impedance. Due to concerns about future heating with the increased total intensity to nominal and ultimate luminosities a review of the impedance reduction techniques within the magnet was required. A number of new beam screen designs are proposed and their impedance evaluated. Heating estimates are also given with a particular attention paid to future intensity upgrades to ultimate parameters.