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For the International Linear Collider to reach its design luminosity, the damping rings must achieve a vertical emittance that is a factor of two below that achieved in any operating storage ring so far. Magnet alignment, orbit control and coupling correction are therefore critical issues for the ILC damping rings. We compare alignment sensitivities in some recent designs for the ILC damping ring lattices, and discuss the results of tuning simulations using different algorithms for correcting the vertical dispersion and the coupling.
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