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Direct measurement of neutral gas heating in a radio-frequency electrothermal plasma micro-thruster

Greig, A.; Charles, C.; Hawkins, R.; Boswell, R.


Direct measurements and modelling of neutral gas heating in a radio-frequency (13.56 MHz) electrothermal collisional plasma micro-thruster have been performed using rovibrational band matching of the second positive system of molecular nitrogen (N2) for operating pressures of 4.5 Torr down to 0.5 Torr. The temperature measured with decreasing pressure for 10 W power input ranged from 395 K to 530 K in pure N2 and from 834 K to 1090 K in argon with 1% N2. A simple analytical model was...[Show more]

CollectionsANU Research Publications
Date published: 2013
Type: Journal article
Source: Applied Physics Letters
DOI: 10.1063/1.4818657


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