| Paper | Title | Other Keywords | Page | ||
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| TUPSA001 | Compensation of Nonlinearities in NICA Collider Optics | sextupole, collider, proton, lattice | 35 | ||
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Intra-beam scattering is the limiting factor of the luminosity lifetime for Nuclotron-based Ion Collider fAcility (NICA). To minimize IBS growth the dispersion should be lowered as much as possible. Due to this fact and rather long dispersionless straight sections with two IPs the normalized chromaticity reaches a high value ~4. Therefore the strong chromatic sextupoles magnets on arcs are required which in turn bring significant non-linear distortions in beam dynamics. Different schemes involving several families of sextupoles and are tested. Optimization of the chromaticity correction scheme was carried out to increase the dynamic aperture. Use of octupole correctors was studied to compensate the nonlinearities from sextupole magnets and minimize the non-linear tune shift in region of beam. Obtained design of the NICA collider lattice was used for the long term tracking to understand the beam transverse parameters behavior.
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