10–15 Aug 2025
SAFE Credit Union Convention Center
America/Los_Angeles timezone

Optical properties of wigglers with high field-to-energy ratio

TUP073
12 Aug 2025, 16:00
2h
SAFE Credit Union Convention Center

SAFE Credit Union Convention Center

1401 K St, Sacramento, CA 95814
Poster Presentation MC1 - Colliders and other Particle and Nuclear Physics Accelerators TUP: Tuesday Poster Session

Speaker

Sergei Seletskiy (Brookhaven National Laboratory)

Description

One of the options to bring electron cooling to high energies is to employ an electron storage ring, which utilizes damping wigglers to counteract emittance growth of electron bunches used to cool hadrons. An example of such a cooler is the Ring Electron Cooler (REC) that can find potential future applications in Electron Ion Collider. The REC is designed to operate at 150 MeV and requires wigglers with peak field of 2.4 T. This unique combination a strong field wiggler operated at a relatively low energy results in unusual optical properties. In this paper we derive analytic formulas for focusing and chromaticity of different wiggler options and compare analytic and beam tracking results. While our analysis was used to optimize chromaticity in the REC, the derived formulas have a general applicability to wigglers with a high field-to-energy ratio.

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

Sergei Seletskiy (Brookhaven National Laboratory)

Co-authors

Dmitry Kayran (Brookhaven National Laboratory) Georg Hoffstaetter (Cornell University) Jonathan Unger (Cornell University (CLASSE)) Jorg Kewisch (Brookhaven National Laboratory)

Presentation materials

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