CERN 8 th March 2016 FIDe L meeting

CERN, 8 th March 2016 FIDe. L meeting 2016 ACTIVITIES E. Todesco CERN, Geneva Switzerland With contributions from colleagues E. Todesco

MAIN TOPICS LHC: squeeze to 40 cm Check the problem of hysteresis in IPQ [P. Hagen, on going] Beta beating: follow up of corrections and feedback on model [R. Tomas Garcia and his team, P. Hagen] Commissioning of triplet correctors MD on nonlinearities LHC: precycle Implementation of the new precycle at 3. 5 Te. V [M. Solfaroli Camillocci, ongoing] Analysis of special measurements on 4001 with 6. 5 Te. V and 3. 5 Te. V precycle [L. Fiscarelli, E. Todesco] Follow-up of commissioning and special measurements of chroma and tune dynamic effects [M. Solfaroli Camillocci, M. Schaumann] Faster ramps E. Todesco Fi. De. L 2016 activities - 2

MAIN TOPICS LHC chromaticity Missing unit in the hysteresis model of b 3 of the dipoles [E. Todesco, M. Solfaroli Camillocci] LHC nonlinearities Work on understanding Q’’ and Q’’’ and relations to b 4 b 5 spool pieces corrections [E. Maclean] E. Todesco Fi. De. L 2016 activities - 3

MAIN TOPICS Injection at 225 Ge. V Review of Fi. De. L at 225 Gev to check if some components still make sense Analysis of special measurements on 4001 with 225 Ge. V plateau injection [L. Fiscarelli, E. Todesco] Analysis of what available for the 11 T [L. Fiscarelli, S. Izquerdo Bermudez] Preparation for a plan on the decay/snapback measurements of Nb. Ti and Nb 3 Sn quadrupoles WISE Wise 2. 0 [P. Skowronski , A. Szczotka, P. Hagen] Review of calibration errors [P. Hagen] Energy calibration The precision of the field model is required to estimate the energy precision from the experiments [J. Wenninger, E. Todesco] E. Todesco Fi. De. L 2016 activities - 4