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On Microbunching Phenomena in Accelerator facilities

On Microbunching Phenomena in Accelerator facilities
place:

 

ANKA seminar room, building 348, 2nd floor
Affiliation:

Helmholtz-Zentrum Berlin, Germany

Date:

4.04.2017

Inviting person:

Anke-Susanne Mueller, IBPT

Speaker:

Atoosa Meseck

Time:

14:00

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.