Numerical studies on electron beam quality optimization in a laser-driven plasma accelerator with external injection at SINBAD for ATHENAe

E N Svystun,U Dorda,B Marchetti,A Martinez De La Ossa,R W Assmann

doi:10.1088/1742-6596/1350/1/012058

E N Svystun, U Dorda + Show 3 more

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https://doi.org/10.1088/1742-6596/1350/1/012058

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Abstract

Nowadays the electron beams produced in plasma-based accelerators (PBAs) are of sufficient energy for multi-GeV applications. However, to allow PBAs to be usable for demanding applications such as Free-Electron Lasers, the quality and stability of plasma-accelerated beams have to be improved. We present numerical studies on acceleration of an RF-generated electron beam with a charge of 0.8 pC and initial mean energy of 100 MeV to GeV energies by a laser-plasma accelerator. This acceleration scheme is planned to be tested experimentally within the framework of the ATHENAe (Accelerator Technology HElmholtz iNfrAstructure) project at the SINBAD (Short INnovative Bunches and Accelerators at DESY) facility at DESY, Hamburg. Electron beam injection, acceleration and extraction from the plasma are investigated through start-to-end 3D simulations. The effect of the injection phase on the accelerated beam quality is investigated through tolerance studies on the arrival-time jitter between the electron beam and the external laser.

Highlights

Laser-plasma accelerators (LPAs) are considered one of the most promising candidates for future compact accelerators and light sources due to their enhanced accelerating gradients of ~100 MV/m [1] and the significant progress in laser technology made in the past decade [2, 3]
One of the key milestones in the realization of laser wakefield acceleration (LWFA) as an attractive and realistic technology for most modern applications will be the demonstration of delivering plasma-accelerated electron beams with sufficient quality and stability
In this paper we present an extension of studies reported in [9, 12] on the optimization of the potential experimental setup and the electron beam quality from external injection in laser-driven plasma acceleration at SINBAD [13], considering the full 6D phase space distribution of the electron beam

Summary

Introduction

Laser-plasma accelerators (LPAs) are considered one of the most promising candidates for future compact accelerators and light sources due to their enhanced accelerating gradients of ~100 MV/m [1] and the significant progress in laser technology made in the past decade [2, 3]. In this paper we present an extension of studies reported in [9, 12] on the optimization of the potential experimental setup and the electron beam quality from external injection in laser-driven plasma acceleration at SINBAD [13], considering the full 6D phase space distribution of the electron beam.

Results

Conclusion