1–6 Jun 2025
Taipei International Convention Center (TICC)
Asia/Taipei timezone

Spin tune measurement for RHIC injection with an AC dipole

MOPM104
2 Jun 2025, 16:00
2h
Exhibiton Hall A _Magpie (TWTC)

Exhibiton Hall A _Magpie

TWTC

Poster Presentation MC1.A01 Hadron Colliders Monday Poster Session

Speaker

Haixin Huang (Brookhaven National Laboratory)

Description

The RHIC spin flipper consists of interleaved AC dipoles and DC dipoles to achieve high spin-flip efficiency at high energies. The sophisticated design aims to minimize beam oscillations outside the spin flipper. For spin tune measurements, the requirements are simpler. It has been shown that by using AC dipoles, one can sweep the AC dipole tune across the spin tune to depolarize the beam. By narrowing the sweep range of the driving tune, the spin tune can be located. This method was recently used to resolve the cause of the low polarization in one of the RHIC rings. This paper summarizes the setup and results.

Funding Agency

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

Region represented America
Paper preparation format LaTeX

Author

Haixin Huang (Brookhaven National Laboratory)

Co-authors

Chuyu Liu (Brookhaven National Laboratory) Frank Rathmann (Forschungszentrum Jülich) Kiel Hock (Brookhaven National Laboratory) Peter Oddo (Brookhaven National Laboratory) Vera Shmakova (Brookhaven National Laboratory)

Presentation materials

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