Göttingen 2025 – scientific programme
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AKBP: Arbeitskreis Beschleunigerphysik
AKBP 2: Novel Accelerator Concepts I
AKBP 2.4: Talk
Tuesday, April 1, 2025, 14:45–15:00, ZHG004
Multidimensional sensitivity analysis of laser wakefield accelerated electrons in dependence on laser and plasma parameters — •Jessica Tiebel1,2, Richard Pausch1, Finn-Ole Carstens1,2, Fabia Dietrich1,2, Franziska Herrmann1,2, Arie Irman1, Susanne Schöbel1,2, Klaus Steiniger1,3, René Widera1, and Ulrich Schramm1 — 1Helmholtz-Zentrum Dresden - Rossendorf — 2Technische Universität Dresden — 3CASUS, Görlitz
Laser-plasma accelerators (LPAs) are a promising tool for generating high-charge, low-emittance electron beams, with broad applications in science and research. LPAs are highly sensitive to variations in laser and plasma parameters, some of which are detectable and others of which are difficult or impossible to measure. In addition, many of these parameters are subject to significant fluctuations. The limited knowledge of the parameters and the non-linear nature of laser wakefield acceleration (LWFA) make experimental investigations of the dependencies between laser and plasma parameters and electron beam properties challenging. In this work, we present a simulation-based study to develop a multi-dimensional mapping of laser and plasma parameters to electron beam parameters for self-truncated ionization injection in LWFA. Using the multi-GPU particle-in-cell code PIConGPU and an automated Snakemake workflow, we performed a comprehensive exploration of the parameter space. This study reveals complex multidimensional dependencies and provides actionable insights for experimentalists to optimize input parameters and achieve high quality electron beams with greater efficiency.
Keywords: LWFA; Laser Plasma Accelerator; particle-in-cell simulation