Speaker
Description
The HL-LHC will operate with very low $\beta^*$ and tight alignment constraints around the upgraded ATLAS and CMS experiments. An optimised commissioning time to reach the most pushed optics will be key to integrating significant luminosity already in the first years of operation.
The contribution presents the status and perspectives of the solutions put in place to prepare machine models that allow us to predict with the best accuracy the orbit and optics of the machine at the start of commissioning in Run 4. In particular, it shows the status of the modelling of magnetic axis deviations, the inclusion of measured magnetic transfer functions and quadrupole fringe fields in optical models, and their expected impact on the residual orbit error and optical correction convergence speed during commissioning.
Funding Agency
Research supported by the HL-LHC project
| Paper status | Resubmitted proceeding files received and assigned to an editor. Accepted by Submitter. |
|---|