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| FRCAMH08 |
Dynamic Aperture Optimization of the NICA Collider |
quadrupole, lattice, dynamic-aperture, resonance |
169 |
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- S.A. Glukhov, E.B. Levichev
BINP SB RAS, Novosibirsk, Russia
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NICA is a proton and heavy ion collider being built at JINR in Dubna, Russia. It was shown that nonlinear quadrupole fringe fields are among the main factors limiting dynamic aperture of the machine. In the present paper the following ways of dynamic aperture optimization were studied: betatron tunes optimization and placing octupole lenses to the lattice to compensate fringe fields' effect.
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Slides FRCAMH08 [2.480 MB]
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| WEPSB019 |
Orbital Motion in Multipole Fields via Multiscale Decomposition |
controls, storage-ring, multipole, lattice |
404 |
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- A.N. Fedorova, M.G. Zeitlin
RAS/IPME, St. Petersburg, Russia
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We present applications of methods of nonlinear local harmonic analy- sis in variational framework for a description of multiscale decomposition in polynomial/rational approximations (up to any order) for nonlinear motions in arbitrary n-pole fields. Our approach is based on the methods allowed to consider dynamical beam/particle localization in phase space and provided exact multiscale representations via nonlinear high-localized eigenmodes for observables with exact control of contributions to motion from each underlying hidden scale.
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