Arc cell options for the HE-LHC

The optics design of the High Energy Large Hadron Collider (HE-LHC), which aims to reach approximately twice the centre of mass energy of the Large Hadron Collider (LHC), in an already existing tunnel is challenging which leads to a trade off between energy reach, aperture and survey offset. Different arc cell options have been stud- ied to find the best arc design of the HE-LHC, where constraints like inter-element distances and tunnel geometry need to be considered as well as the reachable center of mass energy. Furthermore three possible injection energies, three beam screen versions and their effect on the beam stay clear are summarized in this thesis. Eight lattice options have been studied to find an arc design which best meets all the requirements. This thesis gives a detailed summary of the studied arc options and points out their merits.