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

Recent progress in impedance mitigation for HL-LHC equipment

WEP5098
20 May 2026, 16:00
2h
C.I.D

C.I.D

Deauville, France
Poster Presentation MC5.D04: Beam Coupling Impedance Theory, Simulations, Measurements, Code Development Poster session

Speaker

Michela Neroni (European Organization for Nuclear Research)

Description

In the High-Luminosity LHC (HL-LHC) era, increased beam intensities and brightness impose stringent requirements on the beam-coupling impedance of accelerator components. This contribution summarizes recent studies on impedance mitigation for several new devices to be installed in the framework of the HL-LHC upgrades, illustrating design optimizations based on results from multiple electromagnetic simulation solvers and RF measurements. Examples include the optimized design for crab cavity pick-ups, linear beam wire scanners, and beam gas ionization monitors. These developments contribute to a consistent impedance mitigation strategy that reduces beam-induced heating at high intensities, maintaining device functionality and beam stability in the HL-LHC era.

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Author

Michela Neroni (European Organization for Nuclear Research)

Co-authors

Hikmet Bursali (European Organization for Nuclear Research) Rama Calaga (European Organization for Nuclear Research) Dr Hermann Pommerenke (European Organization for Nuclear Research) Christine Vollinger (European Organization for Nuclear Research)

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