2024/03/28 by Ya. S. Derbenev, Derbenev, Ya. S.
Physics and Astronomy · Engineering · #Crystallography and Radiation Phenomena #Advanced X-ray Imaging Techniques #Particle Accelerators and Free-Electron Lasers
paper · pdf · doi:10.48550/arxiv.2404.00073
A "Figure 8" shaped synchrotron is suggested for use in accelerating polarized protons in the energy range below ~ 20 GeV. The spin tune in such an accelerator does not ramp with energy and is equal to zero . Then the intrinsic spin resonances will not appear. A partial Siberian snake (solenoid) is proposed to be inserted into the ring in order to stabilize the spin against imperfect horizontal magnetic fields and implicate a small constant spin tune. The equilibrium polarization will then be horizontal (longitudinal in the solenoid). The twisted spin synchrotron (TSS) can serve as a booster for high energy accelerators with polarized beams. Possibilities to use the TSS as a storage facility or a collider for proton or other particle beams with readily controlled beam polarization are also noted.