# Hybrid LWFA $\vert$ PWFA Staging as a Beam Energy and Brightness Transformer : Conceptual Design and Simulations

## TL;DR

This paper proposes a hybrid plasma wakefield acceleration scheme combining LWFA and PWFA stages to enhance beam energy and brightness, supported by simulations and preliminary experimental results.

## Contribution

It introduces a novel hybrid LWFA-PWFA design that improves beam quality and energy, validated through simulations and initial experimental feasibility studies.

## Key findings

- Successful conceptual design of hybrid LWFA-PWFA system
- Simulation results demonstrate increased beam energy and brightness
- Preliminary experimental feasibility at HZDR shown

## Abstract

We present a conceptual design for a hybrid laser-to-beam-driven plasma wakefield accelerator. In this setup, the output beams from a laser-driven plasma wakefield accelerator (LWFA) stage are used as input beams of a new beam-driven plasma accelerator (PWFA) stage. In the PWFA stage a new witness beam of largely increased quality can be produced and accelerated to higher energies. The feasibility and the potential of this concept is shown through exemplary particle-in-cell simulations. In addition, preliminary simulation results for a proof-of-concept experiment at HZDR (Germany) are shown.