Speaker
Description
The future multi-TeV muon collider facility will employ a superconducting radiofrequency (RF) system with thousands of cavities in the rapid-cycling synchrotron (RCS) chain. This RF system, common to both beams, will accelerate two counter-rotating $\mu^+$ and $\mu^-$ bunches simultaneously. Due to the high intensity of up to $2.7 \times 10^{12}$ particles per bunch, the induced voltage in both the fundamental and several higher-order modes is significant. A strong impact on longitudinal beam quality and the luminosity in the collider is expected. Modelling wake potentials in the RF system of the RCS chain is challenging. The long-range wakefields will interact with both the co- and counter-rotating bunches due to the high quality factor and corresponding long decay constants of the fields in the cavities. These two-beam interactions are studied, with particular attention to the specificities caused by the directionality of the induced fields.
Funding Agency
This work has been sponsored by the Wolfgang Gentner Programme of the German Federal Ministry of Research, Technology and Space (grant no. 13E18CHA) and is endorsed by the IMCC.
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