Caused by bunch's own electromagnetic fields, the spatial modulation of the bunch distribution, named Microbunching, is a prominent phenomena in accelerator facilities. In many cases, Microbunching is launched by the initial shot noise of the bunch. Given suitable conditions, it develops a positiv feedback loop in an Interplay with the accelerator components. This positive feedback leads to a very fast increase of Microbunching amplitude, thus it gives rise to an instability, the so called Microbunching instability (MBI). In the presentation, I discuss , the occurence , dedicated generation, amplification and also suppression and usage of MBI in accelerator facilities.
On Microbunching Phenomena in Accelerator facilities
ANKA seminar room, building 348, 2nd floor
Helmholtz-Zentrum Berlin, Germany
Anke-Susanne Mueller, IBPT