Speaker
Description
The proposed FCC-ee machine is a high-energy, high-intensity and high-precision lepton collider which will require to reduce drastically the differential motions of its two beams at the interaction points (IPs). All undesirable effects on the beam parameters must be analysed in detail, especially in the vicinity of the IP but also along the collider. To assess the beam effects due to vibrations, simulation of magnet motion is necessary. A specially designed ground motion generator, applicable to several locations, is presented. It can take into account the seismic motions and cultural noises observed at the various experimental sites as well as amplifications due to specific mechanical assemblies, such as magnet mounts.
To match as much as possible to reality, the generator can be refined with SuperKEKB data. It is an asymmetrical lepton collider which presents many similarities with FFC-ee. In this article, dedicated measurements on this experiment, which are relevant to the FCC-ee ground motion generator, are described such as transfer function of the last cantilever cryostats behaviors, critical magnet supports resonances, and evaluated coherence at various points locations.
Funding Agency
This work was partially supported by the European Union’s Horizon Europe Marie Sklodowska-Curie Staff Exchanges programme under grant agreement no. 101086276 (EAJADE) and France Japan TYL-FJPPL.
| Region represented | Europe |
|---|---|
| Paper preparation format | Word |
