Impedance in matter

THPT36
Oct 23, 2025, 3:30 PM
2h
third floor (conference center)

third floor

conference center

Poster Presentation WGA:Beam Dynamics in Rings THPT poster session

Speaker

Elias Métral (European Organization for Nuclear Research)

Description

The delivery of a high-brightness muon beam through ionisation cooling is essential to produce sufficient luminosity in a muon collider. The ionisation cooling technique has been demonstrated in principle by the Muon Ionisation Cooling Experiment (MICE) but the potential detrimental impacts of collective effects still need to be carefully investigated. Using the same formalism as the one developed two decades ago for the CERN LHC collimators (which revealed a new and beneficial physical regime), the longitudinal and transverse beam coupling impedances in matter have been computed analytically for the case of a cylindrically symmetric material characterised by any  electrical conductivity, permittivity and permeability, surrounded by a perfect conductor and with a longitudinal size much larger than the transverse one.

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Author

Elias Métral (European Organization for Nuclear Research)

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