4th European Advanced Accelerator Concepts Workshop

Session

WG5-Targets

19 Sept 2019, 18:00

Hotel Hermitage, La Biodola Bay, Isola d'Elba, Italy

150. Plasma Target Characterisation at FLASHForward

Jimmy Garland (Desy)

19/09/2019, 18:00

WG5 - Plasma devices, plasma and beam diagnostics

talk

Precise knowledge of the temporal and spatial evolution of the plasma density within plasma targets is important for realising high quality accelerated beams in plasma wakefield accelerators like FLASHForward. A plasma target characterisation setup was assembled for the purpose of measuring the electrical discharge-generated plasma density in the different types of gas-filled targets used at...

162. Measurement of the decay rate of laser-driven linear wakefields

Jakob Jonnerby (University of Oxford)

19/09/2019, 18:20

WG5 - Plasma devices, plasma and beam diagnostics

talk

Multi-pulse laser wakefield acceleration (MP-LWFA) is a promising scheme for increasing the repetition rate of LWFAs to to the kHz range [1-2] In this approach the laser wakefield is driven by a train of laser pulses spaced by the plasma wavelength such that the wakefields driven by each pulse interfere coherently.

A major consideration for MP-LWFA is the decay time of the wakefield, since...

206. Few-Cycle Microscopy of Stimulated Raman Side Scattering in a Laser Wakefield Accelerator

Malte Kaluza (Institute of Optics and Quantum-Electronics, Friedrich Schiller University Jena)

19/09/2019, 18:40

WG5 - Plasma devices, plasma and beam diagnostics

talk

We report on optical probing results using few-cycle microscopy obtained during a laser wakefield acceleration experiment carried out with the JETI-200 laser system at the Helmholtz-Institute Jena. When traveling through the plasma and exciting a plasma wave, the pump pulse can get scattered at plasma structures depending on the pump pulse’s evolution inside the plasma, its chirp and the...