Jarrige, JulienCorreyero Plaza, SaraElias, Paul-QuentinPackan, Denis2018-11-142018-11-14201735th International Electric Propulsion Conference (IEPC), October 8-12 2017, Atlanta, Georgia, USAhttps://hdl.handle.net/10016/27690Proceeding of: 35th International Electric Propulsion Conference (IEPC), October 8-12, Atlanta, Georgia, USALaser-induced fluorescence (LIF) is a non-intrusive technique that can provide useful information on ion production and acceleration in electric propulsion system. In this paper, spatially resolved LIF measurements of Xe+ are performed in the plume of an electron cyclotron resonance plasma thruster. The mapping of ion velocity distribution function in the magnetic nozzle shows that the ions are accelerated over a distance greater than 12 cm. A mean axial velocity up to 16 km/s has been obtained at 1 sccm and 26 W. The acceleration of ions is compared for different xenon flowrates.10application/pdfengMagnetic nozzleElectron cyclotron resonance thrusterECR thrusterLIF measurementsconference proceedingsAeronáuticaopen access110CC/0000028192