Abstract
The increasing dimensions and beam intensities of the new circular accelerators and colliders impose special demands on the performance of injection and transverse feedback systems. Injection errors blow up the emittance of a beam. The emittance increment with active feedback depends on the combination of injection error amplitude, tune spread and extra damping (above the needs for stability) by the feedback. A description of the transverse feedback system (TFS) for damping of injection oscillations is given. The TFS includes a subsystem for damping of transverse instabilities and a pulse subsystem for damping of injection errors with high damping rate. The optimization of the subsystem parameters is discussed, and the results obtained for damping rate of the beam are presented.
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