Time-resolved ion velocity distribution in a cylindrical Hall thruster: Heterodyne-based experiment and modeling
Abstract
Time-resolved variations of the ion velocity distribution function (IVDF) are measured in the cylindrical Hall thruster using a novel heterodyne method based on the laser-induced fluorescence technique. This method consists in inducing modulations of the discharge plasma at frequencies that enable the coupling to the breathing mode. Using a harmonic decomposition of the IVDF, one can extract each harmonic component of the IVDF from which the time-resolved IVDF is reconstructed. In addition, simulations have been performed assuming a sloshing of the IVDF during the modulation that show agreement between the simulated and measured first order perturbation of the IVDF.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Mar 01, 2015
- Source ID
- 10.1063/1.4914829
Entities
People
- A. Diallo
- Sallie Ann Keller
- Stéphane Mazouffre
- Yevgeny Raitses
- Yuan Shi
Organizations
- National Center for Scientific Research
- Princeton Plasma Physics Laboratory