The 2017 Chamonix workshop featured three joint sessions between the HL-LHC and the LIU project. The main observations from Chamonix 2017 relevant for the HL-LHC project were:
- The LHC machine reached, during operation, availability and efficiency values required for the HL-LHC project;
- It was agreed to operate the LHC in 2017 with the ATS optics configuration (the optics configuration foreseen in the HL-LHC baseline);
- The HL-LHC and LIU projects agreed on consistent common beam parameter sets;
- Preparations for Crab-Cavity tests in the SPS before LS2 are still on track;
- The CERN-MAC endorsed the proposal for hollow electron lenses, as means for halo depletion in the HL-LHC following a review on the needs held in October 2016.
A complete summary of the Chamonix 2017 workshop by the CERN Director of Accelerators, Frederick Bordry, can be found here.
The 28th USLARP meeting in Napa in April 2017, discussed the progress with the Nb3Sn magnet program for the HL-LHC triplet and the 11T dispersion suppressor magnets. The US program is on track for the HL-LHC installation in LS3 and the startup of HL-LHC in 2026. The US program will undergo a review for the CD1 of the project in summer 2017.