Non-Linear Kickers Using Eddy Current Screens and Application to the ESRF

Simon White, Marc Dubrulle, Laurent Farvacque, Philippe Henrissat, GaëL Le Bec, Eric Plouviez, Pantaleo Raimondi, Claude Richard, Lindroos, Mats (Ed.), Schaa, Volker RW (Ed.), Arduini, Gianluigi (Ed.), Pranke, Juliana (Ed.) (+1 others)
The ESRF storage ring injection and accumulation is performed using standard 4-kickers bump and septum magnet. Sextupoles are located within the injection bump leading to significant bump non-closure during the ramp-up and ramp-down and optics distorsion for both stored and injected beam. Introducing non-linearities in the kickers allows for compensation of the perturbation from these sextupoles. We report on the feasibility of adding eddy current screens to a standard kicker magnet design to
more » ... magnet design to generate a non-linear field and its recent application to mitigate the injection perturbations at the ESRF.
doi:10.18429/jacow-ipac2017-mopik063 fatcat:oqgt2il4ebdllcv64ashs4jjaa