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Ion velocities in a micro-cathode arc thruster
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10.1063/1.4725500
/content/aip/journal/pop/19/6/10.1063/1.4725500
http://aip.metastore.ingenta.com/content/aip/journal/pop/19/6/10.1063/1.4725500
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic of the experimental arrangement.

Image of FIG. 2.
FIG. 2.

(a) Arc current and discharge voltage without superimposed spike. (b) Arc current and arc voltage with the superimposed spike (the spike position can be selected relative to the arc initiation). Several superimposed spikes were added.

Image of FIG. 3.
FIG. 3.

An example of oscillating arc and three of the double grids probe currents (Ti ions with 0.1 T magnetic field strength), the delays between each two channels are used to calculated the ion propagation velocity. The probes located in 80 mm, 160 mm, and 240 mm, respectively.

Image of FIG. 4.
FIG. 4.

Average ion velocity as a function of the magnetic field (B = 0–0.3 T). The velocity obtained using the signal propagation delay time between each two neighbor probes (shown in Fig. 3) and distance between two probes.

Image of FIG. 5.
FIG. 5.

Ion velocity distribution as a function of the distance from the cathode with the magnetic field strength as a parameter.

Image of FIG. 6.
FIG. 6.

Comparison of the directly measured impulse (should be impulse bit), calculated impulse using velocity and mass consumption data, and recalculated impulse with subtracted the MP mass. The thruster mass consumption rate is shown with magnetic field changed from 0 to 300 mT.

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/content/aip/journal/pop/19/6/10.1063/1.4725500
2012-06-04
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Ion velocities in a micro-cathode arc thruster
http://aip.metastore.ingenta.com/content/aip/journal/pop/19/6/10.1063/1.4725500
10.1063/1.4725500
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