# Lattice design and beam optics calculations for the new large-scale electron-positron collider FCC-ee

Härer, Bastian

Abstract (englisch):
Following the recommendations of the European Strategy Group for High Energy Physics, CERN launched the Future Circular Collider Study (FCC) to investigate the feasibility of large-scale circular colliders for future high energy physics research.
This thesis presents the considerations taken into account during the design process of the magnetic lattice in the arc sections of the electron-positron version FCC-ee.
The machine is foreseen to operate at four different centre-of-mass energies in the range of 90 to 350$\,$GeV.
Different beam parameters need to be achieved for every energy, which requires a flexible lattice design in the arc sections.
Therefore methods to tune the horizontal beam emittance without re-positioning machine components are implemented.
In combination with damping and excitation wigglers a precise adjustment of the emittance can be achieved.
A very first estimation of the vertical emittance arising from lattice imperfections is performed.
Special emphasis is put on the optimisation of the chromaticity correction scheme based on a multi-family sextupole scheme in the arcs.
In order to obtain a momentum ... mehr

 Zugehörige Institution(en) am KIT Laboratorium für Applikationen der Synchrotronstrahlung (LAS) Publikationstyp Hochschulschrift Jahr 2017 Sprache Englisch Identifikator URN: urn:nbn:de:swb:90-712408 KITopen-ID: 1000071240 Verlag Karlsruhe Umfang XIV, 168 S. Abschlussart Dissertation Fakultät Fakultät für Physik (PHYSIK) Institut Laboratorium für Applikationen der Synchrotronstrahlung (LAS) Prüfungsdatum 10.02.2017 Referent/Betreuer Prof. A.-S. Müller Schlagworte accelerator physics, lattice design, collider, fcc, cern, future circular collider study, beam optics, lepton collider
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