Title :
Damping of injection oscillations
Author_Institution :
JINR, Dubna, Russia
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
Keywords :
accelerator control systems; colliding beam accelerators; cyclic accelerators; feedback; particle beam injection; active feedback; circular accelerators; injection error amplitude; injection oscillations damping; pulse subsystem; transverse feedback system; transverse feedback systems; transverse instabilities; tune spread; Colliding beam accelerators; Colliding beam devices; Damping; Delay; Extraterrestrial measurements; Feedback loop; Particle beam injection; Particle beams; Pulse amplifiers; Stability;
Conference_Titel :
Particle Accelerator Conference, 1997. Proceedings of the 1997
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-4376-X
DOI :
10.1109/PAC.1997.751198
