FEASIBILITY STUDIES FOR THE EXTRACTION OF BOTH LHC BEAMS FROM CERN SPS USING A COMMON KICKER

The CERN Super Proton Synchrotron has to fulfil the demanding intensity specifications for the High Luminosity LHC (HL-LHC) era, with a doubling of the presently achieved operational beam intensity. One of the main problems to be addressed is given by impedance-driven beam instabilities. About 40 % of the total measured SPS impedance is due to the kickers, of which the extraction kickersintwooftheSPS straightsectionsarethelargestsystems. A potentialupgradeis exploredwhichwouldstrongly reducethe numberofextractionkickersrequiredin theSPS, by performing non-local extraction. In this scenario LHC Beam 1 would be kicked by the extraction kicker in SPS Long Straight Section 4 (LSS4), normally only used for Beam 2, to be extracted in LSS6. The concept and the expected performance of such a scheme are presented along with detailed simulation results.