A method to measure the insitu magnetic field in a Hall thruster based on the Faraday rotation effect. (8th May 2019)

• Record Type: Journal Article
• Authors: HAN 韩, Liang 亮; GAO 高, Jun 俊; CHEN 陈, Tao 涛; CONG 丛, Yuntian 云天; LI 李, Zongliang 宗良
• Is Part Of: Plasma science and technology. Volume 21:Number 8(2019:Aug.)
• Publication Date: 2019-05-08
• Subjects: Hall thruster -- in situ magnetic field -- electron transport -- photo-detector; Plasma (Ionized gases) -- Periodicals; 530.44
• DOI: 10.1088/2058-6272/ab0f63
• Languages: English
• ISSNs: 1009-0630

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 photo-detector, and measurement at a MHz scale can be achieved.