Göttingen 2025 – scientific programme

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 2: Novel Accelerator Concepts I

AKBP 2.5: Talk

Tuesday, April 1, 2025, 15:00–15:15, ZHG004

Metrology of gas targets designed for laser plasma wakefield accelerators — •Natascha Thomas, Thomas Heinemann, Constantin Aniculaesei, and Bernhard Hidding — Institute of Laser- and Plasmaphysics, Heinrich Heine University Düsseldorf

Laser Wakefield Acceleration (LWFA) relies on the precise formation of plasma waves (wakes) driven by intense laser pulses to accelerate charged particles. The dynamics of this process thereby depend on the generated plasma density profile, which is, in turn, determined by the underlying gas density of the utilized targets. For this reason, an accurate and reliable measurement of their characteristics is an essential prerequisite for optimizing LWFA experiments. We present the development and application of an optical diagnostic setup built for the characterization of such gas jets over a wide range of densities and profiles. The system's design offers high flexibility and rapid adaptation to a range of various targets. Additionally, first results and further ideas for improved data collection and analysis are discussed.

Keywords: LWFA; metrology; gas target; characterization