Filling schemes and e-cloud contraints for 2017

Several measures implemented in the 2016-17 Extended Year End Technical Stop (EYETS) should allow the increase of both the number of bunches per injection into the LHC and of the intensity per bunch for the 2017 Run. This contribution reviews the possible filling patterns, in particular comparing the high brightness scheme (Batch Compression Merging and Splitting — BCMS — scheme in the PS) against the nominal production scheme. In particular we analyze possible limitations due to electron cloud induced heat load on the beam screens of the cryogenic magnets. Scrubbing requirements for the 2017 Run are also presented , taking into account that one of the LHC sectors (S12) needs to be warmed—up and vented to exchange one of its main dipole magnets.