Lawrence Berkeley National Laboratory
Coherent seeding of self-modulated plasma wakefield accelerators
- Author(s): Schroeder, Carl
- et al.
The growth of the beam self-modulation and hosing instabilities initiated by a seed wakefield is examined. Although the growth rates for the self-modulation and hosing instabilities are comparable, it is shown that an externally excited wakefield can be effective in selectively seeding the beam radial self-modulation, enabling the beam to fully modulate before strong beam hosing develops. Methods for coherent seeding are discussed.