Combined effect of chromaticity and feedback on transverse head-tail instability

Combined effect of chromaticity and feedback on transverse head-tail instability

Blog Article

The resonant interaction of a read more bunched particle beam with short-range wakefields is the cause of head-tail instability, which is a major limitation for single-bunch beam intensity in circular accelerators.There are several processes that suppress this type of instability, such as fast chromatic damping and Landau damping due to machine nonlinearity.Beam-based feedback systems (transverse dampers) provide active suppression of the beam oscillations.

The combined effect of the transverse dampers and chromaticity is synovex one grass discussed in this article.A brief overview of theoretical and experimental studies of the head-tail instability and its mitigation is presented.Results of experimental studies of the transverse mode coupling carried out at National Synchrotron Light Source-II are compared with the theoretical model.