Speaker
Description
In 2015 several important decisions were taken to define the baseline upgrade path of the SPS for LIU, and solid technical progress was made in the different upgrade work-packages. In this presentation the progress of the upgrade activities is described, together with the accompanying theoretical and simulation advances where relevant. The reviews and decisions on the electron cloud mitigation, the additional impedance reduction and the beam protection devices (including the beam dump) are explained, and the implications for the project are described. The key machine studies and operational experience are reviewed and put into the context of the expected performance reach. The situation with the various beam instrumentation upgrades is discussed, and the status of the alternative scenarios like 8b+4e and BCMS is summarised. The remaining challenges and timeline for completion are outlined.