| Paper | Title | Page |
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| MOP064 | Emittance Preservation for the Curved ILC Main Linac | 192 |
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| It is envisaged in Baseline Configuraation Document that the main linear accelerator of ILC will follow the earth curvature instead of being laser-straight. Beam based alignments will be imperative for preserving the small vertical beam emittances through the main linac. Various beam based algorithms have been developed during the last decade. However, most of the simulation studies assumed the straight geometry of the linac. In this work we present the results on single bunch emittance dilution in the curve ILC main linac, using Dispersion Free Steering under the nominal misalignment of the beam line components. We present the comparison of the curve linac with laser stright geometry. We have studied the sensitivity of the DFS to the various misalignments and also considered the effect of incoming beam jitter and quadrupole vibration jitter. Further, robustness of DFS to the failure of corrector magnets or BPM is investigated. The beneficial effect of the dispersion bumps on the emittance dilution performance is also discussed. |