Journal ArticleDOI
Recommended Practice for Use of Langmuir Probes in Electric Propulsion Testing
Robert B. Lobbia,Brian E. Beal +1 more
TLDR
In this article, the authors present a guide to standardize the methods of performing correct and accurate Langmuir probe measurements within the plasma environment produced by an electric propulsion device, which is similar to our approach.Abstract:
Presented in this work is a guide to standardize the methods of performing correct and accurate Langmuir probe measurements within the plasma environment produced by an electric propulsion device. ...read more
Citations
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A Comparison of Emissive Probe Techniques for Electric Potential Measurements in a Complex Plasma
TL;DR: In this paper, the authors compare various emissive probe techniques for measurements of the plasma potential in a low-pressure magnetized discharge of the Hall thruster and show that the floating point method is expected to give a value ∼Te/e below the plasmas potential.
Journal ArticleDOI
Recommended Practice for Use of Faraday Probes in Electric Propulsion Testing
TL;DR: In this article, standard practices, guidelines, and recommendations for experimental methods and analysis techniques that aim to standardize community practices, to mitigate test environment effects, and to reduce systematic measurement error in order to improve plume predictions in the space environment.
Journal ArticleDOI
Ion thrusters for electric propulsion: Scientific issues developing a niche technology into a game changer.
K. Holste,Patrick Dietz,S. Scharmann,Konstantin Keil,Torsten Henning,D. Zschätzsch,M. Reitemeyer,B. Nauschütt,F. Kiefer,F. Kunze,J. Zorn,Christian Heiliger,N. Joshi,U. Probst,R. Thüringer,Chris Volkmar,D. Packan,S. Peterschmitt,K. T. Brinkmann,H.-G. Zaunick,Markus H. Thoma,Michael Kretschmer,H. J. Leiter,Stefan Schippers,Klaus Hannemann,Klaus Hannemann,Peter J. Klar +26 more
TL;DR: The transition from old space to new space along with increasing commercialization has a major impact on space flight, in general, and on electric propulsion (EP) by ion thrusters, in particular.
Journal ArticleDOI
Spatial evolution of small wavelength fluctuations in a Hall Thruster
Zachariah Brown,Benjamin Jorns +1 more
TL;DR: The spatial evolution of small wavelength fluctuations in the Hall direction of a 9-kW class magnetically shielded Hall effect thruster is experimentally characterized in this paper, where high-speed electrostatic probes are used to measure plasma density perturbations in the acceleration region and near field plume of this cross field device.
Journal ArticleDOI
Magnetic confinement and instability in partially magnetized plasma
June Young Kim,Jae Young Jang,Jae-Young Choi,Jong-in Wang,Won Ik Jeong,M.A.I. Elgarhy,M.A.I. Elgarhy,Geunwoo Go,Kyoung-Jae Chung,Yong-Seok Hwang +9 more
TL;DR: In this article, the magnetic confinement properties of a partially magnetized plasma considering instability were investigated and it was shown that the plasma properties show non-uniform characteristics as the magnetic field increases, indicating enhanced magnetic confinement.
References
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Journal ArticleDOI
The Theory of Collectors in Gaseous Discharges
H. M. Mott-Smith,Irving Langmuir +1 more
TL;DR: In this article, a cylindrical or spherical electrode (collector) immersed in an ionized gas is brought to a suitable potential, it becomes surrounded by a symmetrical space charge region or "sheath" of positive or of negative ions (or electrons).
Journal ArticleDOI
Heat flow through a langmuir sheath in the presence of electron emission.
G D Hobbs,J A Wesson +1 more
Journal ArticleDOI
Instantaneous Direct‐Display System of Plasma Parameters by Means of Triple Probe
Sin‐Li Chen,T. Sekiguchi +1 more
TL;DR: A new electrostatic probe method utilizing the triple probe is proposed in which no voltage or frequency sweep is required, allowing the instantaneous values of the electron temperature and the electron density to be determined within a short time.
Journal ArticleDOI
Theory of Electrostatic Probes in a Low‐Density Plasma
TL;DR: The theory of sperical and cylindrical probes immersed in plasmas of such low density that collisions can be neglected is formulated in this paper, yielding the particle density and flux as functionals of the electrostatic potential, the situation in the body of the plasma, and the properties of the probe.
ReportDOI
Theory of spherical and cylindrical langmuir probes in a collisionless, maxwellian plasma at rest
TL;DR: In this article, a method was developed and used to obtain theoretical predictions of the current collected from a collisionless, fully Maxwellian plasma at rest by an electrically conducting Langmuir probe having spherical or cylindrical symmetry.