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AKBP: Arbeitskreis Beschleunigerphysik
AKBP 8: Advanced IT Tools
AKBP 8.5: Talk
Wednesday, March 22, 2023, 16:45–17:00, CHE/0183
Generating synthetic shadowgrams with an in-situ plugin in PIConGPU — •Finn-Ole Carstens1,2, Klaus Steiniger1, Richard Pausch1, Susanne Schöbel1,2, Yen-Yu Chang1, Arie Irman1, Ulrich Schramm1,2, and Alexander Debus1 — 1Helmholtz-Zentrum Dresden-Rossendorf — 2Technische Universität Dresden
Few-cycle shadowgraphy is a valuable diagnostic for laser-plasma accelerators for obtaining insight into the µm- and fs-scale relativistic plasma dynamics. To enhance the understanding of experimental shadowgrams, we developed a synthetic shadowgram diagnostic within the fully relativistic particle-in-cell code PIConGPU.
In the shadowgraphy diagnostic, the probe laser is propagated through the plasma using PIConGPU, and then extracted and propagated onto a virtual CCD using an in-situ plugin for PIConGPU based on Fourier optics. The in-situ approach circumvents performance limitations of a post-processing workflow, like storing and loading large output files that result from large-scale laser-plasma simulations.
In this talk we present the in-situ plugin and preliminary synthetic shadowgrams from laser wakefield accelerator simulations.