17–22 May 2026
C.I.D
Europe/Zurich timezone

Counter-rotating beam-coupling impedance study with Wakis for the muon collider RCS chain

MOP1046
18 May 2026, 16:00
2h
C.I.D

C.I.D

Deauville, France
Poster Presentation MC1.A09: Muon Accelerators, Neutrino Factories, Muon Colliders Poster session

Speaker

Elleanor Lamb (European Organization for Nuclear Research)

Description

The current Muon Collider design features a high-energy acceleration chain comprised of four rapid-cycling synchrotrons (RCS), in which two counter-rotating muon bunches are accelerated simultaneously while sharing a common beam pipe and radio-frequency acceleration system. To accurately model the impedance, a numerical integration of a ‘counter-rotating’ wake-function is added to the open source 3D time-domain electromagnetic solver, Wakis. The study shows how this can be used to characterise the impedance behaviour specific to a counter-rotating beam configuration in an RF cavity and beam pipe. Additionally, a field monitoring module has been implemented in Wakis to visualise the geometric patterns of trapped longitudinal modes. This allows identification of whether the shunt impedance of these modes changes sign in the counter-rotating case.

Funding Agency

This work is endorsed by the IMCC.

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Author

Elleanor Lamb (European Organization for Nuclear Research)

Co-authors

Alexej Grudiev (European Organization for Nuclear Research) David Amorim (École Polytechnique Fédérale de Lausanne) Elena de la Fuente (European Organization for Nuclear Research) Elias Métral (European Organization for Nuclear Research) Heiko Damerau (European Organization for Nuclear Research) Mr Leonard Thiele (University of Rostock) Simon Albright (European Organization for Nuclear Research)

Presentation materials

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