Compensation of the chromatic effects in the Novosibirsk Φ-factory lattice
The chromatic effects of the φ-factory lattice are analyzed to optimize the location of the sextupolar correctors. Five families of sextupoles are envisaged to compensate for the tunes chromaticity as well as the chromatic dispersion and β-functions. The approximate π-relations in the betatron phase between the sextupoles are pursued to preserve the dynamic aperture, while the tolerance of breaking these relations is determined from the Hamiltonian treatment. Computer simulation results are discussed regarding the φ-factory lattice dynamic aperture and taking into account the synchrotron motion.