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Space-Time Plasma-Steering Source: Control of Microwave Plasmas in Overmoded Cavities

Mazières, Valentin and Pascal, Olivier and Pascaud, Romain and Liard, Laurent and Dap, Simon and Clergereaux, Richard and Boeuf, Jean-Pierre Space-Time Plasma-Steering Source: Control of Microwave Plasmas in Overmoded Cavities. (2021) Physical Review Applied, 16 (5). ISSN 2331-7019

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Official URL: https://doi.org/10.1103/PhysRevApplied.16.054038

Abstract

Recently, space-time plasma-steering source has been proposed as an innovative microwave plasma source to meet the challenge of controlling plasmas in overmoded cavities. This concept has been successfully demonstrated experimentally, allowing the space-time control of nanosecond microwave plasmas on initiators. This paper gives insights into the path that shall be taken to reach full space-time control of plasmas in overmoded cavities. To that end, a key criterion, namely the “plasma-steering criterion,” is introduced and verified with a numerical model. This criterion must be respected for an accurate space-time control of plasmas in overmoded cavities. The usefulness of the plasma density (depending on its value with respect to the critical plasma density) on the plasma-control capabilities is also highlighted.

Item Type:Article
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
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Deposited On:01 Dec 2021 10:50

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