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SYPA: Symposium Plasma-based Particle Accelerators

SYPA 2: Sympsium Plasma-based Particle Accelerators 2

SYPA 2.1: Hauptvortrag

Mittwoch, 20. März 2019, 16:30–17:00, Plenarsaal

Plasma Wakefield Acceleration: Instabilities and Stabilization — •Alexander Pukhov — Heinrich-Heine-University of Dusseldorf

New acceleration technology is mandatory for the future of high energy particle acceleration. A feasible approach is to exploit the plasma wakefield acceleration, where the driver can be a high intensity laser pulse or a charged particle beam. Already a lot of progress has been achieved on this path both in theory and experiment and several most promising configurations have been identified. On the other hand, the plasma is known for its instabilities that can significantly affect both the driver and the witness bunch. In some cases, the driver instability in plasmas is highly welcome, like in the AWAKE project, where a long proton driver has to undercome a deep self-modulation in a plasma column to be able to excite a strong plasma wave. In many other configurations, like the hollow plasma channel or a bubble or blow-out regime, the instabilities must be mitigated.