Self-modulation instability of ultra-relativistic particle bunches with finite rise times

Abstract

We study the evolution of the self-modulation instability using bunches with finite rise times. Using particle-in-cell simulations we show that unlike long bunches with sharp rise times, there are large variations of the wake amplitudes and wake phase velocity when bunches with finite rise times are used. These results show that use of bunches with sharp rise times is important to seed the self-modulation instability and to ensure stable acceleration regimes.

arXiv comment11 pages, 5 figures

References in corpus (8)

• Generating multi-GeV electron bunches using single stage laser wakefield acceleration in a 3D nonlinear regime
• Proton Driven Plasma Wakefield Acceleration
• Self-modulation instability of a long proton bunch in plasmas
• One-to-one direct modeling of experiments and astrophysical scenarios: pushing the envelope on kinetic plasma simulations
• Transverse self-modulation of ultra-relativistic lepton beams in the plasma wakefield accelerator
• Hosing Instability Suppression in Self-Modulated Plasma Wakefields
• Physical problems (microphysics) in relativistic plasma flows
• Self-modulation instability of ultra-relativistic particle bunches with finite rise times

Cited by in corpus (7)

• Experimental observation of plasma wakefield growth driven by the seeded self-modulation of a proton bunch
• Path to AWAKE: Evolution of the concept
• AWAKE readiness for the study of the seeded self-modulation of a 400\,GeV proton bunch
• Effect of beam emittance on self-modulation of long beams in plasma wakefield accelerators
• Self-modulation instability of ultra-relativistic particle bunches with finite rise times
• Proton beam self-modulation seeded by electron bunch in plasma with density ramp
• Novel diagnostic for precise measurement of the modulation frequency of Seeded Self-Modulation via Coherent Transition Radiation in AWAKE