Measurement and modelling of a radiofrequency micro-thruster

C. Charles; R. W. Boswell

doi:10.1088/0963-0252/21/2/022002

Measurement and modelling of a radiofrequency micro-thruster

C. Charles^*, R. W. Boswell

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

68 Citations (Scopus)

Abstract

A capacitively coupled radiofrequency (rf) (13.56MHz) cylindrical argon micro-discharge expanding into a larger glass tube is studied by performing optical and electrical measurements over a pressure range 0.35Torr and a rf power range 540W. Measurements of the axial and radial plasma density profiles at the Paschen minimum near 1.5Torr are used to develop a global model of the discharge and estimate neutral heating from ionneutral charge exchange collisions for micro-propulsion applications.

Original language	English
Article number	022002
Journal	Plasma Sources Science and Technology
Volume	21
Issue number	2
DOIs	https://doi.org/10.1088/0963-0252/21/2/022002
Publication status	Published - Apr 2012

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AB - A capacitively coupled radiofrequency (rf) (13.56MHz) cylindrical argon micro-discharge expanding into a larger glass tube is studied by performing optical and electrical measurements over a pressure range 0.35Torr and a rf power range 540W. Measurements of the axial and radial plasma density profiles at the Paschen minimum near 1.5Torr are used to develop a global model of the discharge and estimate neutral heating from ionneutral charge exchange collisions for micro-propulsion applications.

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Measurement and modelling of a radiofrequency micro-thruster

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