München 2019 – wissenschaftliches Programm

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AKjDPG: Arbeitskreis junge DPG

AKjDPG 3: Tutorial Plasma Physics (joint session AKjDPG/P)

AKjDPG 3.1: Tutorium

Sonntag, 17. März 2019, 16:00–17:00, HS 3

Plasmas at atmospheric pressure: Overview on Physics and Applications — •Ronny Brandenburg — Leibniz-Institut für Plasmaforschung und Technologie e.V. (INP Greifswald) — Universität Rostock, Institut für Physik

Plasmas at atmospheric pressures are known from lightnings, but are also of great industrial importance. Technically they can be operated in many different electrode geometries, discharge regimes, and, with a great variety of their basic plasma parameters. In particular non-thermal as well as thermal plasmas exists at elevated pressures. While thermal plasmas are used for material processing (e.g. welding and spraying) and chemical conversion, non-thermal plasmas have been intensively studied in the context of surface treatment, environmental remediation, ozone generation, flow control, analytics, light sources and life-science applications. The first part of the tutorial will give an overview about the classification and application of plasmas at atmospheric pressure.

The research on atmospheric pressure non-equilibrium plasmas intensified over the last two decades leading to a large variety of plasma sources. Although the fundamental understanding of these discharges is emerging, there are still numerous unexplained phenomena in these complex plasmas. The properties of these plasmas span over a huge range of electron densities as well as heavy particle and electron temperatures. The second part of the tutorial will provide an overview of the key processes for its generation and stabilization as well as for their unique physical and chemical properties.