Multistage Coupling of Laser-Wakefield Accelerators with Curved Plasma Channel

Abstract

Multistage coupling of laser-wakefield accelerators is essential to overcome laser energy depletion for high-energy applications such as TeV level electron-positron colliders. Current staging schemes feed subsequent laser pulses into stages using plasma mirrors, while controlling electron beam focusing with plasma lenses. Here a more compact and efficient scheme is proposed to realize simultaneous coupling of the electron beam and the laser pulse into a second stage. A curved channel with transition segment is used to guide a fresh laser pulse into a subsequent straight channel, while allowing the electrons to propagate in a straight channel. This scheme benefits from a shorter coupling distance and continuous guiding of the electrons in plasma, while suppressing transverse beam dispersion. With moderate laser parameters, particle-in-cell simulations demonstrate that the electron beam from a previous stage can be efficiently injected into a subsequent stage for further acceleration, while maintaining high capture efficiency, stability, and beam quality.

6 pages, 4 figures

References in corpus (4)

• Generating multi-GeV electron bunches using single stage laser wakefield acceleration in a 3D nonlinear regime
• Femtosecond x rays from laser-plasma accelerators
• Demonstration of relativistic electron beam focusing by a laser-plasma lens
• Synchrotron radiation from a curved plasma channel laser wakefield accelerator

Cited by in corpus (9)

• Correlated Energy Spread Compensation in Multi-Stage Plasma-Based Accelerators
• Staging of High-Gradient Wakefield Accelerators
• High-throughput injection-acceleration of electron bunches from a linear accelerator to a laser wakefield accelerator
• Overcoming the dephasing limit in multiple-pulse laser wakefield acceleration
• Consolidating Multiple FemtoSecond Lasers in Coupled Curved Plasma Capillaries
• Charge coupling in multi-stage laser wakefield acceleration
• Compact Petawatt-Class Laser Wakefield Acceleration with Plasma Telescope
• Guided propagation of extremely intense lasers in plasma via ion motion
• Compton recoil effects in staging of laser wakefield accelerators