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arXiv · 2102.08878

A final focus system for injection into a laser plasma accelerator at the ARES linac

Sumera Yamin·Ralph Assmann·Florian Burkart·Angel Ferren Pousa·Wolfgang Hillert·Francois Lemery·Barbara Marchetti·Eva Panofski
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Abstract

ARES (Accelerator Research Experiment at SINBAD) is a linear accelerator at the SINBAD (Short INnovative Bunches and Accelerators at DESY) facility at DESY. ARES was designed to combine reproducible beams from conventional RF-based accelerator technology with novel but still experimental acceleration techniques. It aims to produce high brightness ultra-short electron bunches in the range of sub fs to few fs, at a beam energy of 100-150 MeV, suitable for injection into novel acceleration experiments like Dielectric Laser Acceleration (DLA) and Laser driven Plasma Acceleration (LPA). This paper reports the conceptual design and simulations of a final focus system for injecting into a LPA experiment at ARES, including permanent magnetic quadrupoles (PMQ), sufficient longitudinal space for collinear laser and electron transport, space for required diagnostics and a LPA setup. Space-charge effects play a significant role and are included. Simulation results on the focusing of the ARES electron bunches into and their transport through the laser-driven plasma are presented. The effects of several errors have been simulated and are reported.

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Sumera Yamin, Ralph Assmann, Florian Burkart, Angel Ferren Pousa, Wolfgang Hillert, Francois Lemery, Barbara Marchetti, Eva Panofski. 2021-02-17. A final focus system for injection into a laser plasma accelerator at the ARES linac. https://doi.org/10.1103/physrevaccelbeams.24.091602

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