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FCCee optics tunning team
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Europe/Zurich
Description
Concerning timeline there are two important milestones, the upcoming FCC workshop and a dedicated event on optics and tuning
to take place spring 2022 (suggested by Tor and Frank).
Concerning open tasks, Tessa presented a list here:
https://indico.cern.ch/event/1095570/contributions/4608242/attachments/2342879/3994590/LNO_Nov_2021.pdf
Adding more and interest from the different labs in blue:
• BPM orthogonality errors are not included
• BPM resolution / accuracy tolerance from us (BI will only work on this in 2022 )
• DA and lifetime calculations (ESRF, EPFL, CEA)
• Solenoid imperfections to be considered
• Tapering imperfections
• IP Local corrections (DESY+Liverpool)
• Local corrections elsewhere (e.g. Dy at sextupoles) (DESY+Liverpool).
• Non-linear corrections: lifetime, DA, chromatic aberrations, amplitude detuning, RDTs, etc. (ESRF, EPFL)
• Design of IP knobs to control IP parameters in an orthogonal fashion (EPFL)
• Design of global knobs for control of fundamental parameters e.g.: Tunes, chromas, coupling, chromatic coupling, amp. det., etc. (EPFL)
• Profiling simulation and look towards speeding up algorithm
• Development of a modular code base compatible with Xsuite / pyAT (ESRF, EPFL, CEA)
• Machine learning (CEA, EPFL)
• Apply correction technique to low energy, Z lattice (ESRF)
• LOCO (DESY + Liverpool)
• 3-6 COD method as used in SuperKEKB (DESY + Liverpool, CERN)
• AC dipole (CERN)
• Single kick (CERN)
• Simulation of commissioning process (ESRF)
• Optics generation: Commissioning optics and more realistic lattices (BPMs & orbit correctors) (all)
• Experiments in PETRA (DESY+Liverpool)
• Experiments in SuperKEKB & LHC (CERN, )
• Spin tuning (EPFL)
• Lattice version control / quality control / comparison (EPFL)
• Tuning with beam-beam (EPFL)
• Chromaticity correction (CEA, ESRF, CERN)
Limited resources in:
• PyAT development for lifetime, DA, cluster, Response matrix. (DiTari project to migrate to python)
FCCee optics tunning team