What is it about?

This work investigates the dynamics of guided streamers in an atmospheric pressure plasma jet device, focusing on their transmission and reflection mechanisms when interacting with grounded annular and surface electrodes. By combining optical and electrical characterization techniques, the study demonstrates the behavior of positive and negative guided streamers, their reflection types, and the influence of electrode positioning on propagation times and amplitudes.

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Why is it important?

By investigating the transmission and reflection mechanisms of guided streamers when interacting with grounded electrodes, the study advances our understanding of the underlying physical processes that govern their behavior.The research provides new insights into the nature of positive and negative guided streamers, their reflection types, and the influence of electrode positioning on propagation times and amplitudes. These findings contribute to the development of more accurate theoretical models and a deeper understanding of the fundamental principles of plasma physics. Moreover, the study combines optical and electrical characterization techniques to analyze the guided streamers, showcasing a methodological approach that can be applied to other plasma-related research. By advancing our knowledge of guided streamer dynamics, this work paves the way for improvements in various applications and technologies that rely on plasma physics, as well as the discovery of new phenomena in this field.

Perspectives

The perspectives of this work include potential applications in fields like plasma medicine, where the development of innovative therapeutic plasma sources could benefit from this enhanced understanding of guided streamer behavior. In the future, on-board sensors such as current monitors may be incorporated into plasma-based medical devices, allowing real-time monitoring of currents during patient therapy and potentially leading to more effective treatments.

Dr Thierry Dufour

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This page is a summary of: Transmission and multiple reflection mechanisms of guided streamers propagating through grounded annular electrode and interacting with grounded surface electrode, Plasma Sources Science and Technology, November 2022, Institute of Physics Publishing,
DOI: 10.1088/1361-6595/aca1da.
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