Speaker
Description
The non-linear effects that arise from misalignment and field errors have been shown to degrade both the dynamic aperture (DA) and (MA) in simulation of the Future Circular Collider electron-positron machine (FCC-ee). This study focuses on using multipoles, such as octupoles, to control the amplitude detuning and higher-order chromaticity as well as investigation of dedicated non-linear correctors to control affected resonance driving terms (RDTs). These non-linear parameters are often coupled and the relative strength with which lattice elements act on each non-linearity depends on the local optical parameters. Studies were performed on the placement and strength of non-linear lattice elements to develop orthogonal correction knobs and first attempts at higher-order corrections to recover the reduced DA and MA are explored.
Funding Agency
We acknowledge the support of the Natural Sciences and Engineering Research Council of Canada (NSERC).
Nous remercions le Conseil de recherches en sciences naturelles et en génie du Canada (CRSNG)
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