Numerical modeling of a proton spin-flipping system in the spin transparency mode at an integer spin resonance in JINR's Nuclotron

In this paper we propose a lattice insertion for the Nuclotron ring called a “spin navigator” that can adjust any direction of the proton polarization in the orbital plane using weak solenoids. The polarization control is realized in the spin transparency mode at the energy of 108 MeV, which corresp...

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Bibliographic Details
Published in:Journal of instrumentation 2021-12, Vol.16 (12), p.P12039
Main Authors: Filatov, Yu.N., Kondratenko, A.M., Kondratenko, M.A., Vorobyov, V.V., Vinogradov, S.V., Tsyplakov, E.D., Butenko, A.V., Syresin, E.M., Kostromin, S.A., Derbenev, Ya.S., Morozov, V.S.
Format: Article
Language:English
Subjects:
accelerator modelling and simulations
Accelerator modelling and simulations (multi-particle dynamics, single-particle dynamics)
Accelerator Subsystems and Technologies
Beam dynamics
instrumentation for particle accelerators and storage rings
Instrumentation for particle accelerators and storage rings - high energy (linear accelerators, synchrotrons)
Integers
linear accelerators
Mathematical models
Motion stability
multi-particle dynamics
OTHER INSTRUMENTATION
Polarization
Protons
single-particle dynamics
Solenoids
Spin dynamics
Spin resonance
Stability criteria
synchrotrons
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Summary:In this paper we propose a lattice insertion for the Nuclotron ring called a “spin navigator” that can adjust any direction of the proton polarization in the orbital plane using weak solenoids. The polarization control is realized in the spin transparency mode at the energy of 108 MeV, which corresponds to the integer spin resonance γ G = 2. The requirements on the navigator solenoid fields are specified considering the criteria for stability of the spin motion during any manipulation of the polarization direction in an experiment. The paper presents the results of numerical modeling of the proton spin dynamics in the Nuclotron ring operated in the spin transparency mode. The verified spin navigator is aimed at an experimental study of a spin-flipping system using the Nuclotron ring. The results are relevant to the NICA (JINR), EIC (BNL) and COSY (FZJ) facilities where the spin transparency mode can be applied for polarization control.
ISSN:1748-0221
1748-0221
DOI:10.1088/1748-0221/16/12/P12039