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A method to measure the in situ magnetic field in a Hall thruster based on the Faraday rotation effect

This paper presents a method to measure the in situ magnetic field in a Hall thruster by optical non-invasive means, based on the optical Faraday rotation effect. This method does not affect the discharge of the thruster. Furthermore, its time resolution depends on the speed of the photo-detector, a...

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Bibliographic Details
Published in:Plasma science & technology 2019-08, Vol.21 (8), p.85502
Main Authors: HAN, Liang, GAO, Jun, CHEN, Tao, CONG, Yuntian, LI, Zongliang
Format: Article
Language:English
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Summary:This paper presents a method to measure the in situ magnetic field in a Hall thruster by optical non-invasive means, based on the optical Faraday rotation effect. This method does not affect the discharge of the thruster. Furthermore, its time resolution depends on the speed of the photo-detector, and measurement at a MHz scale can be achieved.
ISSN:1009-0630
2058-6272
DOI:10.1088/2058-6272/ab0f63