1–6 Jun 2025
Taipei International Convention Center (TICC)
Asia/Taipei timezone

Transverse coherent direct space charge: comparison between several approaches

WEPM095
4 Jun 2025, 16:00
2h
Exhibiton Hall A _Salmon (TWTC)

Exhibiton Hall A _Salmon

TWTC

Poster Presentation MC5.D05 Coherent and Incoherent Instabilities Theory, Simulations, Code Development Wednesday Poster Session

Speaker

Elias Métral (European Organization for Nuclear Research)

Description

The proton driver of a future Muon Collider complex is designed to deliver a multi-GeV, short and high-intensity proton bunch to a target in order to maximize the muon yield. In the International Muon Collider Collaboration (IMCC), two high power H- Linac configurations are studied: a 2 MW with a beam energy of 5 GeV, and a 4 MW with a beam energy of 10 GeV. The Linac is followed by an accumulator ring and a compressor ring. With a single bunch intensity of 5.0e14 protons within a transverse emittance of ~15 mm mrad, strong space-charge effects can be expected in these rings.
In this framework, different simulation codes used to estimate the transverse coherent space-charge mode frequency shifts in synchrotrons have been compared: BimBim, based on the Circulant Matrix Model (CMM); the Effective impedance method for space-charge; GALACTIC based on the Vlasov equation; the boxcar model for space-charge only; and the ABS model which assumes an Air-Bag bunch distribution in a Square well.

Funding Agency

Work supported by the European Union (EU) and by the Swiss Accelerator
Research and Technology program (CHART)

Region represented Europe
Paper preparation format LaTeX

Author

David Amorim (École Polytechnique Fédérale de Lausanne)

Co-authors

Elias Métral (European Organization for Nuclear Research) Kazuhito Ohmi (High Energy Accelerator Research Organization) Xavier Buffat (European Organization for Nuclear Research)

Presentation materials

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