Performance Improvement of the Microwave Discharge Ion Thruster u20

Nishiyama, Kazutaka; Nakaï, T.; Kuninaka, Hitoshi

doi:10.2514/6.2006-5176

Cited by 6 publications

(2 citation statements)

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“…The ECR ion engine uses a microwave with a frequency of 4.25 GHz to produce plasma, which is transmitted through the waveguide to the discharge ECR plasma is formed through subsequent electronneutral and electron-ion collisions. JAXA has improved the thrust force of the ECR ion engine by changing the way the propellant is injected [3], [4]. In conventional ECR ion engines, the propellant inlet is located only at the end of the waveguide.…”

Section: Ecr Ion Engine Installed In Asteroid Explorermentioning

confidence: 99%

“…Moreover, the Japan Aerospace Exploration Agency (JAXA) has been researching and developing an electron cyclotron resonance (ECR) ion engine that can be installed in an asteroid explorer and has also improved its propulsion performance [3], [4]. To improve the performance, JAXA needed to be able to measure the microwave electric-field distribution of the internal plasma in the ion engine during actual operation.…”

Section: Introductionmentioning

confidence: 99%

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Fiber-mounted Electro-optic Probe for Microwave Electric-field Measurement in Plasma Environment

Togo

2013

NTT Technical Review

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The demand for greater precision in electric-field measurements is increasing. To meet this demand, NTT Microsystem Integration Laboratories has developed an electro-optic (EO) probe that is mounted on the tip of an optical fiber and has no metal components. This article describes the basic principles and improvements in sensitivity stability and thermal and magnetic resistance of the EO probe. It also presents the results of microwave electric-field measurements conducted in an electron cyclotron resonance ion engine installed on an asteroid explorer under the collaboration of NTT and the Japan Aerospace Exploration Agency.

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Section: Ecr Ion Engine Installed In Asteroid Explorermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%