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

Liang HAN (韩亮); Jun GAO (高俊); Tao CHEN (陈涛); Yuntian CONG (丛云天); Zongliang LI (李宗良)

doi:10.1088/2058-6272/ab0f63

Plasma Science and Technology > 2019 > 21(8): 85502-085502. > DOI: 10.1088/2058-6272/ab0f63

Liang HAN (韩亮), Jun GAO (高俊), Tao CHEN (陈涛), Yuntian CONG (丛云天), Zongliang LI (李宗良). A method to measure the in situ magnetic field in a Hall thruster based on the Faraday rotation effect[J]. Plasma Science and Technology, 2019, 21(8): 85502-085502. DOI: 10.1088/2058-6272/ab0f63

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

Beijing Institute of Control Engineering, Beijing 100094, People’s Republic of China

Funds: The authors would like to acknowledge the support of National Natural Science Foundation of China (No. 51807006).

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Received Date: December 20, 2018
Revised Date: March 10, 2019
Accepted Date: March 11, 2019

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Abstract

Abstract

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 photodetector, and measurement at a MHz scale can be achieved.
- Hall thruster,
- in situ magnetic field,
- electron transport,
- photo-detector

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References

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