Investigation of Plasma-wave Interaction in Helicon Antenna Thrusters

Tian, Bin; Ahedo, Eduardo; Navarro, Jaume

doi:10.2514/6.2014-3475

Cited by 5 publications

(9 citation statements)

References 14 publications

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“…The influence of the applied magnetic field strength in cylindrical homogeneous plasmas has been studied in the past 39,40 . Figure 6 shows the magnitude of E r , B r and the power absorption density w p for two values of B a that differ from the nominal simulation of Section III.…”

Section: A Applied Magnetic Field Strengthmentioning

confidence: 99%

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Two-dimensional plasma-wave interaction in an helicon plasma thruster with magnetic nozzle

Tian

Merino

Ahedo

2018

Plasma Sources Sci. Technol.

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An axisymmetric, finite difference frequency domain model is used to study the wave propagation and power absorption in a helicon plasma thruster operating inside a laboratory vacuum chamber. The magnetic field is not purely axial and the plasma beam is cylindrical in the source and divergent in the magnetic nozzle. The influence of the magnetic field strength, plasma density, electron collision frequency and geometry on the wavefields and the power absorption maps is investigated, showing different power deposition patterns. The electromagnetic radiation is not confined to the source region but propagates into the nozzle divergent region, and indeed the power absorption there is not negligible. For the impedance at the antenna, the reactance is rather constant but the resistance is very dependent on operation parameters; optimal parameter values maximizing the resistance are found.

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Section: A Applied Magnetic Field Strengthmentioning

confidence: 99%

“…Section 5 presents the conclusions. A preliminary version of this work was presented in a conference paper [22].…”

Section: Introductionmentioning

confidence: 99%

Two-dimensional plasma-wave interaction in an helicon plasma thruster with magnetic nozzle

Tian

Merino

Ahedo

2018

Plasma Sources Sci. Technol.

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“…This work inquires into the evaluation of the propulsive performances of the HPT05 breadboard, a prototype that has been conceived by the EP2-UC3M 1 based on their theoretical background of the plasma phenomena [11,12,13], and manufactured by SENER 2 . The HTP05 design is a downgraded escalation in power of the results compiled in an European Space Agency funded project [14] carried out by the aforementioned institutions.…”

mentioning

confidence: 99%

Experimental characterization of a 1 kW Helicon Plasma Thruster

Navarro-Cavallé

Wijnen

Fajardo

et al. 2018

Vacuum

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A Helicon Plasma Thruster has been tested in the 500 -1000 W radio-frequency power range, at 13.56 MHz. In order to determine its propulsive performances, a parametric study of some operational parameters has been carried out, including the exploration of the magnetic field topology and strength, the mass flow rate, and different propellants. The plasma plume has been characterized by means of intrusive plasma diagnostics, which allow an indirect estimation of the thrust, 2 -6.6 mN, and thrust efficiency, about 2.9 %. The structure of the plasma expansion is compared against a theoretical model showing a good agreement.

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“…The 1D plasma-wave interaction model which is applied to couple the 1D fluid model has been introduced by numerous authors [7,8,31] where E and B represent only the RF-related electromagnetic field, j a is the external current density and μ 0 is the permeability in a vacuum. Additionally,…”

Section: Plasma-wave Interaction Modelmentioning

confidence: 99%

“…According to the finite length helicon source and the reflecting boundary condition at the conducting end wall, all quantities in the z and θ directions can be expanded as sin or cos series for integer modes as (l, m). Hence, applying the new expressions, the Maxwell equations are rearranged into four differential equations and two algebraic equations [31]. The set of equations can be solved numerically as an ordinary differential problem in radially uniform and non-uniform plasmas and all electromagnetic (EM) field components can be obtained.…”

Section: Plasma-wave Interaction Modelmentioning

confidence: 99%

Investigation of radial heat conduction with 1D self-consistent model in helicon plasmas

Tian¹,

Merino²,

Wang³

et al. 2022

Plasma Sci. Technol.

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A 1D radially self-consistent model in helicon plasmas has been established to investigate the influence of radial heat conduction on the plasma transport and wave propagation. Two kinds of 1D radial fluid models, with and without considering heat conduction, have been developed to couple the 1D plasma-wave interaction model and the self-consistent solutions have been obtained. It is concluded that in the low magnetic field range the radial heat conduction plays a moderate role in the transport of helicon plasmas and the importance depends on the application of the helicon source. It influences the local energy balance leading to the enhancement of the electron temperature in the bulk region and the decrease of the plasma density. The power deposition in the plasma is mainly balanced by the collisional processes and the axial diffusion, whereas it is compensated by the heat conduction in the bulk region and consumed near the boundary. The role of radial heat conduction in the large magnetic field regime becomes negligible and two fluid models show the consistency. The local power balance especially near the wall is improved when the conductive heat is taken into account.

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Investigation of Plasma-wave Interaction in Helicon Antenna Thrusters

Cited by 5 publications

References 14 publications

Two-dimensional plasma-wave interaction in an helicon plasma thruster with magnetic nozzle

Two-dimensional plasma-wave interaction in an helicon plasma thruster with magnetic nozzle

Experimental characterization of a 1 kW Helicon Plasma Thruster

Investigation of radial heat conduction with 1D self-consistent model in helicon plasmas

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