In Hall thrusters, ions are extracted from a quasineutral plasma by the electric field induced by the local drop of electron conductivity associated with the presence of a magnetic barrier. Since the electric field is used both to extract and accelerate ions and to generate the plasma, thrust and specific impulse are not independent in a Hall thruster. There is a need for versatile thrusters that can be used for a variety of maneuvers, i.e., that can operate either at high thrust or at high specific impulse for a given power. The double stage Hall thruster (DSHT) design could allow a separate control of ionization and acceleration, and hence separate control of thrust and specific impulse. In the DSHT configuration, a supplementary plasma source (ionization stage), independent of the applied voltage, is added and placed upstream of the magnetic barrier (acceleration stage). The DSHT concept is also well adapted to the use of alternative propellants, lighter and with a less efficient ionization than xenon. Several designs of double stage Hall thrusters have been proposed in the past, but these attempts were not really successful. In this paper, we present a brief review of the main DSHT designs described in the literature, we discuss the relevance of the DSHT concept, and, on the basis of simple physics arguments and simulation results, we propose a new design, called ID-HALL (Inductive Double stage HALL thruster). In this design, the ionization stage is a magnetized inductively coupled RF plasma. The inductive coil is inside the central cylinder of the thruster and located nearby the acceleration stage. Preliminary modeling results of this DSHT are described.
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September 2018
Research Article|
September 06 2018
ID-HALL, a new double stage Hall thruster design. I. Principle and hybrid model of ID-HALL
L. Dubois
;
L. Dubois
1
LAPLACE, Université de Toulouse, CNRS, INPT, UPS
, 118 Route de Narbonne, 31062 Toulouse, France
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F. Gaboriau;
F. Gaboriau
1
LAPLACE, Université de Toulouse, CNRS, INPT, UPS
, 118 Route de Narbonne, 31062 Toulouse, France
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L. Liard;
L. Liard
1
LAPLACE, Université de Toulouse, CNRS, INPT, UPS
, 118 Route de Narbonne, 31062 Toulouse, France
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D. Harribey;
D. Harribey
1
LAPLACE, Université de Toulouse, CNRS, INPT, UPS
, 118 Route de Narbonne, 31062 Toulouse, France
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C. Henaux;
C. Henaux
1
LAPLACE, Université de Toulouse, CNRS, INPT, UPS
, 118 Route de Narbonne, 31062 Toulouse, France
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L. Garrigues;
L. Garrigues
1
LAPLACE, Université de Toulouse, CNRS, INPT, UPS
, 118 Route de Narbonne, 31062 Toulouse, France
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G. J. H. Hagelaar;
G. J. H. Hagelaar
1
LAPLACE, Université de Toulouse, CNRS, INPT, UPS
, 118 Route de Narbonne, 31062 Toulouse, France
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S. Mazouffre;
S. Mazouffre
2
ICARE, CNRS, Université d'Orléans
, 1C avenue de la Recherche Scientifique, 45071 Orléans, France
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C. Boniface;
C. Boniface
3
CNES
, 18 Avenue Edouard Belin, 31401 Toulouse, France
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J. P. Boeuf
J. P. Boeuf
a)
1
LAPLACE, Université de Toulouse, CNRS, INPT, UPS
, 118 Route de Narbonne, 31062 Toulouse, France
a)Author to whom correspondence should be addressed: [email protected]
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a)Author to whom correspondence should be addressed: [email protected]
Phys. Plasmas 25, 093503 (2018)
Article history
Received:
June 08 2018
Accepted:
August 14 2018
Connected Content
A companion article has been published:
ID-HALL, a new double stage Hall thruster design. II. Experimental characterization of the inductive ionization source
Citation
L. Dubois, F. Gaboriau, L. Liard, D. Harribey, C. Henaux, L. Garrigues, G. J. H. Hagelaar, S. Mazouffre, C. Boniface, J. P. Boeuf; ID-HALL, a new double stage Hall thruster design. I. Principle and hybrid model of ID-HALL. Phys. Plasmas 1 September 2018; 25 (9): 093503. https://doi.org/10.1063/1.5043354
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