Experimental characterization of the narrow channel Hall thruster
A miniature Hall thruster was developed in the Aerospace Plasma Laboratory (APL), Technion, designed to operate at low voltages and mass flow rates. The so-called narrow channel Hall thruster (NCHT) represents a compromise between exhaust velocity and operating power and is of an unconventional cons...
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Veröffentlicht in: | Plasma sources science & technology 2018-12, Vol.27 (12), p.124005 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | A miniature Hall thruster was developed in the Aerospace Plasma Laboratory (APL), Technion, designed to operate at low voltages and mass flow rates. The so-called narrow channel Hall thruster (NCHT) represents a compromise between exhaust velocity and operating power and is of an unconventional construction. The thruster proportions were selected to maintain sufficient gas density in low mass flow rates, resulting in a very narrow and short channel compared to the classical design. A 3 cm NCHT prototype was constructed with a ratio of channel width to mid diameter of 1:30. Initial data from the thruster operation show that at a mass flow rate of 0.38 mg s−1 and power of 15 W the thruster achieves a thrust level of about 1 mN. The thruster performance was characterized using both direct thrust measurements and ion beam diagnostics using a retarding potential analyzer. |
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ISSN: | 0963-0252 1361-6595 1361-6595 |
DOI: | 10.1088/1361-6595/aaec65 |