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Influence on Langmuir probe measurements by an ECR thruster with magnetic nozzle

Schäfer, Clara (2023) Influence on Langmuir probe measurements by an ECR thruster with magnetic nozzle. Oberflächentechnologie mit Plasma- und Ionenstrahlprozessen Mühlleithen / Vogtland, 2023-03-14 - 2023-03-16, Mühlleithen.

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Official URL: https://www.iom-leipzig.de/veranstaltungsportal/veranstaltungs-details.html?tx_events2_events%5Baction%5D=show&tx_events2_events%5Bcontroller%5D=Day&tx_events2_events%5Bevent%5D=45&tx_events2_events%5Btimestamp%5D=1678662000&cHash=dcbf69d5ce68622e5cd80642


Ensuring reliability in the measurement and interpretation of plasma diagnostics is essential for characterizing thruster concepts in the growing field of electric propulsion. Langmuir probes are often used to determine the properties of low temperature plasmas. However, not much research is found on Langmuir probe measurements on electron cyclotron resonance thrusters with magnetic nozzle, especially no detailed studies on variable probe orientations with respect to magnetic field lines. The question arises which differences can be shown in the electron energy distribution regarding the probes orientation and in what way it is possible to interpret probe alignment consequences on determined plasma characteristics. We perform our study as follows: We measure in two orientations, parallel and orthogonal to magnetic field lines, at different operating states of the thruster (variable power and volume flow settings). The Langmuir probe data shows clearly a dependency on the probes orientation near to the thruster. Due to the determined anisotropic non-Maxwellian distribution mainly visible in parallel orientation we conclude a parallel orientation of Langmuir probes with respect to magnetic field lines near to the thruster is preferable for ECRT with MN.

Item URL in elib:https://elib.dlr.de/194257/
Document Type:Conference or Workshop Item (Speech)
Title:Influence on Langmuir probe measurements by an ECR thruster with magnetic nozzle
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Date:14 March 2023
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:ECRT, magnetic nozzle, Langmuir probe, EEDF
Event Title:Oberflächentechnologie mit Plasma- und Ionenstrahlprozessen Mühlleithen / Vogtland
Event Location:Mühlleithen
Event Type:Workshop
Event Start Date:14 March 2023
Event End Date:16 March 2023
Organizer:IOM Leipzig
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transportation
DLR - Research area:Raumfahrt
DLR - Program:R RP - Space Transportation
DLR - Research theme (Project):R - Reusable Space Systems and Propulsion Technology
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Spacecraft, GO
Deposited By: Schäfer, Clara
Deposited On:15 Jun 2023 11:32
Last Modified:24 Apr 2024 20:54

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