Dortmund 2021 – wissenschaftliches Programm

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 9: Electron Accelerators and Particle Sources

AKBP 9.8: Vortrag

Mittwoch, 17. März 2021, 18:15–18:30, AKBPb

Corrections of high-order nonlinearities in the LHC and HL-LHC (An introduction to my PhD Thesis) — •Joschua Dilly — CERN and Humboldt Universität zu Berlin

Optics Measurements and Corrections have been of utmost importance for successful operation of the LHC and will continue to be so for the upcoming High-Luminosity upgrade HL-LHC. The optics in the insertion regions in particular are very sensitive to errors in their elements, due to the extremely high beta-functions present.

In this talk basic concepts of local and global corrections are presented and arguments made for the importance of extending these corrections to high-order magnetic field errors to improve beam stability and lifetime.

These procedures are presented in the framework of my PhD-Thesis, in which I am concerned with the mitigation of these errors by utilizing resonance driving terms and investigating the effects from feed-down emerging from the non-zero closed orbit in the insertion regions. Results of my studies of the first half of my PhD are shown and discussed here together with an outlook on the upcoming second half.