Meet the Expert: Dr. Stéphane Mazouffre
Dr Stéphane Mazouffre gives a lecture about spacecraft electric propulsion elements.
- https://www.uni-giessen.de/en/faculties/ggn/events/mte-folder/mte_mazzouffre
- Meet the Expert: Dr. Stéphane Mazouffre
- 2023-11-13T18:00:00+01:00
- 2023-11-13T19:30:00+01:00
- Dr Stéphane Mazouffre gives a lecture about spacecraft electric propulsion elements.
Nov 13, 2023 from 06:00 to 07:30 (Europe/Berlin / UTC100)
Heinrich-Buff-Ring 14 (Hörsaalgebäude Physik), Hörsaal III
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Über Dr. Stéphane Mazouffre
Stéphane Mazouffre is a Research Director at the French National Research Center (CNRS).
After graduating from the ENSIL and the University of Limoges, France, in material science and plasma physics in 1996, he received a PhD in the field of low-temperature plasma physics in 2001 from the Eindhoven University of Technology (TU/e), The Netherlands. His research activities in electric propulsion for satellites and spacecraft began in 2003 after he joined the ICARE laboratory in Orléans, France. He is currently the Advisory Director of the ICARE lab and the head of the Electric Propulsion Team. He was the director of ORACLE, a joint-laboratory between ICARE and the Exotrail startup from 2019 until 2022.
His research interests cover Hall thrusters and variants, new electric propulsion concepts and micropropulsion. His research also extends to the physics and technology of hollow cathodes and the physics of magnetized discharges. He is especially recognized for the development of laser diagnostics. He has authored over 120 scientific publications, more than 140 conference papers and many articles in scientific magazines. He attended 75 international symposia, 22 as invited speakers. In addition, he teaches spacecraft propulsion, electric and nuclear propulsion and beam propulsion in various institutions like the Orléans University, the IPSA and the EPF engineering schools in Paris.
He is a senior member of the American Institute of Aeronautics and Astronautics and a member of the BoD of the Electric Rocket Propulsion Society. He is associated editor of the recently launched Journal of Electric Propulsion.
Dr. Mazouffre was a recipient of the Bronze Medal of the CNRS in 2008 and of the Noah Hershkowitz Award of the Institute of Physics in 2012. In 2020 he was awarded a Chair of Excellence from the Carlos III University in Madrid to work on laser-aided diagnostics for propulsion. In November 2021, Dr. Mazouffre received the Edmond Brun prize of the French Academy of Sciences for his pathfinder works in electric thruster miniaturization.
Vortrag: Spacecraft electric propulsion elements
Electric Propulsion (EP) is an efficient way of moving a spacecraft. In short, EP relies upon the ejection of ions into the vacuum of space to generate a net momentum. The large velocities of ions achieved by electrostatic or electromagnetic acceleration make EP much more efficient than chemical propulsion from a propellant consumption viewpoint, hence the interest and the high demand for the new satellite generations. In this contribution, I propose first a brief introduction to EP fundamentals followed by a series of examples of new results obtained recently in my laboratory. The introduction will compare EP with chemical propulsion and show main advantages and weak points of ion thrusters. It will also explain why and how EP has revolutionized the satellite market and made feasible unmanned space missions previously inaccessible. Finally, the various EP approaches and technologies will be described. In a second part, I will present and discuss recent experimental results obtained with magnetic-nozzle plasma thrusters, metal propellant thrusters and Hall effect thrusters. This part will demonstrate the usefulness of laser spectroscopy and machine learning in the field of EP.
