Parameter sensitivity of plasma wakefields driven by self-modulating proton beams

Abstract

The dependence of wakefield amplitude and phase on beam and plasma parameters is studied in the parameter area of interest for self-modulating proton beam-driven plasma wakefield acceleration. The wakefield sensitivity to small parameter variations reveals the expected level of shot-to-shot jitter of experimental results. Of all the parameters, the plasma density stands out, as the wakefield phase is extremely sensitive to this parameter. The study of large variations determines the effects that limit the achievable accelerating field in different parts of the parameter space: nonlinear elongation of the wakefield period, insufficient charge of the drive beam, emittance-driven beam divergence, and motion of plasma ions.

7 pages, 8 figures, 3 tables

References in corpus (13)

• Proton Driven Plasma Wakefield Acceleration
• Self-modulation instability of a long proton bunch in plasmas
• Growth and phase velocity of self-modulated beam-driven plasma waves
• Phase velocity and particle injection in a self-modulated proton-driven plasma wakefield accelerator
• Plasma Wakefield Acceleration with a Modulated Proton Bunch
• The ion motion in self-modulated plasma wakefield accelerators
• Transverse self-modulation of ultra-relativistic lepton beams in the plasma wakefield accelerator
• Hosing Instability Suppression in Self-Modulated Plasma Wakefields
• Effect of plasma inhomogeneity on plasma wakefield acceleration driven by long bunches
• Excitation of two-dimensional plasma wakefields by trains of equidistant particle bunches
• Natural noise and external wake field seeding in a proton-driven plasma accelerator
• Ion motion in the wake driven by long particle bunches in plasmas
• Optimum angle for side injection of electrons into linear plasma wakefields

Cited by in corpus (9)

• Experimental observation of plasma wakefield growth driven by the seeded self-modulation of a proton bunch
• Path to AWAKE: Evolution of the concept
• Physics of beam self-modulation in plasma wakefield accelerators
• LCODE: a parallel quasistatic code for computationally heavy problems of plasma wakefield acceleration
• Experimental Study of Wakefields Driven by a Self-Modulating Proton Bunch in Plasma
• Effect of beam emittance on self-modulation of long beams in plasma wakefield accelerators
• First fully kinetic three-dimensional simulation of the AWAKE baseline scenario
• AWAKE-related benchmarking tests for simulation codes
• Multi-proton bunch driven hollow plasma wakefield acceleration in the nonlinear regime