A tunable plasma-based energy dechirper

Abstract

A tunable plasma-based energy dechirper has been developed at FLASHForward to remove the correlated energy spread of a 681~MeV electron bunch. Through the interaction of the bunch with wakefields excited in plasma the projected energy spread was reduced from a FWHM of 1.31$\%$ to 0.33$\%$ without reducing the stability of the incoming beam. The experimental results for variable plasma density are in good agreement with analytic predictions and three-dimensional simulations. The proof-of-principle dechirping strength of $1.8$~GeV/mm/m significantly exceeds those demonstrated for competing state-of-the-art techniques and may be key to future plasma wakefield-based free-electron lasers and high energy physics facilities, where large intrinsic chirps need to be removed.

References in corpus (8)

• Mitigation of the hose instability in plasma-wakefield accelerators
• The FLASHForward Facility at DESY
• Experimental Demonstration of Energy Chirp Compensation by a Tunable Dielectric Based Structure
• Constraints on photon pulse duration from longitudinal electron beam diagnostics at a soft X-ray free-electron laser
• Intrinsic Stabilization of the Drive Beam in Plasma Wakefield Accelerators
• Chirp mitigation of plasma-accelerated beams using a modulated plasma density
• Saturation of the hosing instability in quasi-linear plasma accelerators
• Three-Dimensional Analysis of Wakefields Generated by Flat Electron Beams in Planar Dielectric-Loaded Structures

Cited by in corpus (20)

• Longitudinal phase-space manipulation with beam-driven plasma wakefields
• Correlated Energy Spread Compensation in Multi-Stage Plasma-Based Accelerators
• Phase space dynamics of a plasma wakefield dechirper for energy spread reduction
• Energy spread minimization in a beam-driven plasma wakefield accelerator
• FLASHForward: Plasma-wakefield accelerator science for high-average-power applications
• Terawatt attosecond X-ray source driven by a plasma accelerator
• Attosecond-Angstrom free-electron-laser towards the cold beam limit
• All-optical GeV electron bunch generation in a laser-plasma accelerator via truncated-channel injection
• Energy Compression and Stabilization of Laser-Plasma Accelerators
• A near-ideal dechirper for plasma-based electron and positron acceleration using a hollow channel plasma
• On the generation of ultra-bright and low energy spread electron beams in laser wakefield acceleration in a uniform plasma
• Scissor-cross ionization injection in laser wakefield accelerators
• Ponderomotive Injection in Plasma Wakefield Accelerators
• Intrinsic energy spread and bunch length growth in plasma-based accelerators due to betatron motion
• Controlled density-downramp injection in a beam-driven plasma wakefield accelerator
• Modelling Chromatic Emittance Growth in Staged Plasma Wakefield Acceleration to 1 TeV using Nonlinear Transfer Matrices
• Impact of Electron Transport Models on Capillary Discharge Plasmas
• Simulation Study of Energy Chirp Induced Effects in Laser Wakefield Accelerator Driven Free Electron Laser
• Modeling of Advanced Accelerator Concepts
• Progress of the FLASHForward X-2 high-beam-quality, high-efficiency plasma-accelerator experiment