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

Transient finite-element simulations of fast-ramping normal-conducting magnets for a 10 TeV muon collider

WEPB029
4 Jun 2025, 16:00
2h
Exhibiton Hall A _Bear (TWTC)

Exhibiton Hall A _Bear

TWTC

Poster Presentation MC7.T09 Normal Conducting Magnets Wednesday Poster Session

Speaker

Dominik Moll (Technical University of Darmstadt)

Description

Ongoing conceptual studies for a 10TeV muon collider identified rapid cycling synchrotrons as major engineering challenge. Due to the muon’s short lifetime of only 2.2µs at rest, normal-conducting bending magnets with field rise rates of well beyond 1kT/s are indispensable to support accordingly fast acceleration cycles. Energies of 100MJ will be interchanged between magnets and capacitor banks within few milliseconds. Accurate models of the magnets are thus required to optimize the overall system performance. The non-uniform temperature distribution in the magnet strongly affects material properties like the electrical conductivity of copper and must therefore be considered in the electromagnetic field problem. This contribution presents recent advancements in addressing this multi-physical problem by using problem-specific finite-element tools allowing to describe the inherently transient behavior. The ferromagnetic yoke is accurately resolved by using a novel combination of a Bergqvist hysteresis and a homogenized eddy current model. Finally, different magnet design concepts are compared in terms of material costs, magnetic energy, losses, field quality and temperature buildup.

Region represented Europe
Paper preparation format LaTeX

Author

Dominik Moll (Technical University of Darmstadt)

Co-authors

Fulvio Boattini (European Organization for Nuclear Research) Herbert De Gersem (Technical University of Darmstadt) Laura D'Angelo (Technical University of Darmstadt) Luca Bottura (European Organization for Nuclear Research) Marco Breschi (University of Bologna)

Presentation materials

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