TUCBMH04
DESY, Hamburg, Germany
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TUCBMH04 |
Optimization of Electron Beam Quality in a Laser-Driven Plasma Accelerator with External Injection at SINBAD for ATHENAe | |
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| 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 beam quality optimization in a laser-plasma accelerator with external injection from an RF linac. This acceleration scheme is planned to be tested experimentally within the framework of the ATHENAe project at the SINBAD facility at DESY, Hamburg. ATHENAe aims at transforming the existing plasma acceleration proof-of-principle results into novel, cost-efficient accelerator technology with a sufficient beam quality for various applications in Helmholtz centers and beyond. Start-to-end simulations show that the normalized transverse emittance can be preserved by tailoring the longitudinal density profile of the plasma entrance and exit with smooth vacuum-plasma and plasma-vacuum transitions. Moreover, the injection of an electron beam in the proper phase of the laser-driven plasma wave and its short length with respect to the plasma wavelength allow the relative energy spread of the beam to be decreased during the acceleration process. 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. | ||
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Slides TUCBMH04 [34.158 MB] | |
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