Far-field plume characterization of a low-power cylindrical Hall thruster

Author:

Perrotin Tatiana1ORCID,Vinci Alfio E.2ORCID,Mazouffre Stéphane2ORCID,Fajardo Pablo1ORCID,Ahedo Eduardo1ORCID,Navarro-Cavallé Jaume1ORCID

Affiliation:

1. Department of Aerospace Engineering, Universidad Carlos III de Madrid 1 , Leganés, Spain

2. Institut de Combustion, Aérothermique, Reactivité et Environnement (ICARE), Centre National de la Recherche Scientifique 2 , Orléans, France

Abstract

A fully cylindrical Hall thruster prototype was tested in the power range of 30–300 W with the objective of understanding the behavior of the discharge as a function of input parameters. Various operating conditions were compared, including two magnetic field configurations, a set of propellant mass flow rates, and a range of discharge voltages. Plasma properties were measured in the plume, with a Langmuir probe, a retarding potential analyzer, and a Faraday cup. The experimental results showed that the mass flow rate strongly affects the ionization and, consequently, other related properties such as the plasma density, currents, and propellant utilization. The discharge voltage also appeared to influence the ion energy and propellant utilization. The performance accessible from the measured magnitudes is assessed, resulting in a maximum thrust efficiency of about 18% at 0.35 mg s−1 and 168 W.

Funder

Agencia Estatal de Investigación

Publisher

AIP Publishing

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