Institutsleiter

Prof. Dr.-Ing.
Stefanos Fasoulas

Stellvertreter

Prof. Dr.-Ing. Sabine Klinkner

Prof. Dr. rer. nat. Alfred Krabbe

Sekretariat
Prof. Fasoulas

Larissa Schunter

Sekretariat
Prof. Klinkner

Annegret Möller

Sekretariat
Prof. Krabbe

Barbara Klett

Administration

Dr. Thomas Wegmann

 


Institut für Raumfahrtsysteme
Pfaffenwaldring 29
70569 Stuttgart

Tel. +49 711 685-69604
Fax +49 711 685-63596

Direkt zu

 

Elektrostatischer Trägheitseinschluss

Welcome to the homepage of Inertial Electrostatic Confinement (IEC). The research aim at understanding the plasma generation and extraction from IEC device, and further applied on space propulsion and other industrial application, e.g. semi-conductor manufacture. Currently, the theme focus on building up the diagnostics capability for both invasive and non-invasive methods. If you have any question and suggestion, please feel free to contact Mr. Yung-An Chan.

27.02.2017 - Test campaign of NEAT project
17.03.2017 Theme:  V-I characterization, plasma measurement, proof of concept

02.05.2016 - Participation and present in 2016 Space Propulsion Conference in Rome, Italy.
06.05.2016 Topic:  Development of Inertial Electrostatic Confinement Devices for Space Propulsion in IRS

04.07.2015 - Participation and present in 2015 International Electric Propulsion Conference in Kobe, Japan.
10.07.2015 Topic:  Review of Thermal Pulsed Plasma Thruster: Concept, Catagorization, and Application
Topic: An Approach for Thrust and Losses in Inertial Electrostatic Confinement Devices for Electric Propulsion Applications

29.04.2015  The controllable jet extraction in IEC device had been acheved in IRS since 2015.

Tight jet mode Spray mode
IEC tight-jet mode IEC spray-jet mode

Please refer to the following link: IEC principle

Please refer to the following link: IEC history

Potential topic for DA/MA/SA/BA:

  1. Comparison and calibration of probe measurement for IEC devices.
    • Survey the theory and design concept for Faraday probe / Retarded Potential Analyzer (RPA).
    • Design and development the Faraday probe / RPA.
    • Design calibration plan and method for Faraday probe / RPA. based on IEC
    • Measure the plasma properties for IEC by Faraday probe /RPA and compare the result with Langmuir probe in different operation condition (voltage and current).
  1. Investigation of the composition and distribution of ion species for an IEC propulsion system by emission spectroscopy.
    • Design and develop the facility for optical diagnosis.
    • Measure the quantum efficiency for the facility and do calibration for different propellant (Ar/He/N 2) based on the measurement from electrostatic probe. 2
    • Measure plasma properties for IEC device in different operation condition (voltage and current).
    • Base on the result of the composition and distribution to derive the potential well distribution inside the IEC
  1. Mach-Zender Interferometry (MZI) facility development and calibration for plasma properties of IEC.
    • Survey the theory and measurement concept for MZI
    • Design and develop the MZI facility to measure the plasma jet and core
    • Measure the quantum efficiency for the facility and do calibration for different propellant (Ar/He/N 2) based on the measurement from electrostatic probe.
    • Measure plasma properties for IEC device in different operation condition (voltage and current).
    • Compare the result from MZI measurement with the result from emission spectroscopy
  1. The influence of grid geometries of IEC to the confinement of plasma core and jet formation.
    • Evaluated the correlation between potential well and size of grids
    • Derive the correlation of potential well and plasma jet properties.
    • Evaluate the potential well of the core by measuring the plasma properties of jet
    • Figure out the operation region for several different grid size and confirm the correlation between plasma jet properties and potential well by experimental result.
  1. Improvement of analysis model by implementing collision term for the jet model.
    • Implement of collision term for IEC analysis model.
    • Do experiment by either optical diagnosis or electrostatic probe to measure the contour and pattern of plasma jet
    • Refine the parameters for plasma jet model

If you feel interesting in any topic or have some interesting idea, please feel free to contact me. 

Several diagnostic tool for IEC research has been applied.

General:

  • Thruster balance
  • XY diagnostic platform

Electrostatic probe:

  • Langmuir Probe (planar / cylinderical)
  • Faraday Probe
  • Retarding Potential Analyzer (under-manufacturing)

Optical diagnostics:

  • Mach-Zehnder Interferometry (under-going)
  • Emission Spectroscopy (VIS)
  • VUV/EUV Spctroscopy (planing)

Others:

  • Microwave Interferometry (planing)

Several modeling, both analytical and numerical, have been developed or under-developing in IRS.

Analytical models:

  • Loss mechanism model (excl. charge exchange effect)
  • Thrust model
  • 1D poisson solver for potential estimation (incl. space charge limited and gas dynamic effect)
  • 2D & 3D free space potential solver

Numerical models:

  • DSMC/PIC/FP solver

Please refer to the following link: Contact