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

Studies of magnets misalignment in Ring-based Electron Cooler

THP5327
21 May 2026, 16:00
2h
C.I.D

C.I.D

Deauville, France
Poster Presentation MC5.D02: Nonlinear Single Particle Dynamics Resonances, Tracking, Higher Order, Dynamic Aperture, Code Developments Poster session

Speaker

Jonathan Unger (Cornell University (CLASSE))

Description

Performance of Electron Ion Collider (EIC) will benefit from cooling of protons at the highest collision energy (γ=294). The required cooling can be provided by the Ring Electron Cooler (REC) – a non-magnetized RF-based electron cooler, employing an electron storage ring. The REC is a “racetrack” consisting of a 170 m long cooling section (CS), a wiggler section opposing the CS and containing eighteen 2.4 T damping wigglers with highly nonlinear field profile, and two matching arcs. The REC utilizes an elaborate correction scheme to achieve the target dynamic aperture (DA) in the baseline lattice. Alignment errors in magnet placement will be present in a constructed ring and will disrupt the DA correction scheme. In this paper, we describe studies of alignment errors, their effect on the dynamic aperture, define tolerances to various misalignments and propose a procedure for misalignment correction.

Funding Agency

Work supported by Brookhaven Science Associates, LLC under Contract No. DE-SC0012704 with the U.S. Department of Energy

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Author

Jonathan Unger (Cornell University (CLASSE))

Co-authors

Alexei Fedotov (Brookhaven National Laboratory) Georg Hoffstaetter (Cornell University (CLASSE)) Jorg Kewisch (Brookhaven National Laboratory) Sergei Seletskiy (Brookhaven National Laboratory)

Presentation materials

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