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

Progress with the Impedance Calculations for the Hadron Storage Ring of the Electron Ion Collider

THP5341
21 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

Gang Wang (Brookhaven National Laboratory)

Description

An accurate impedance budget is essential for predicting collective stability threshold and ensuring successful commissioning of the Hadron Storage Ring (HSR) in the EIC. Significant progress has been made in recent years toward building a complete impedance budget for the HSR. In the arcs, detailed analysis have been performed for beam screens, BPMs, and geometric transitions between vacuum chambers. Since each straight section (IR) hosts different subsystems, impedance calculations have also been carried out individually for all IRs. We used three electromagnetic codes; GdfidL, CST, and ECHO3D to obtain and cross-validate our simulated impedances.
This paper presents updated HSR impedance calculations and demonstrates how we optimize the engineering design of HSR vacuum components to minimize their overall impedance contribution.

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Author

Gang Wang (Brookhaven National Laboratory)

Co-authors

Alexei Blednykh (Brookhaven National Laboratory) Medani Sangroula (Brookhaven National Laboratory)

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