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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Ko, J.J. Cho, T.S. Choi, M.C. Choi, E.H. Cho, G.S. Uhm, H.S. |
| Copyright Year | 1999 |
| Description | Author affiliation: Charged Particle Beam & Plasma Lab., Kwangwoon Univ., Seoul, South Korea (Ko, J.J.) |
| Abstract | Summary form only given. Magnetoplasma is the plasma that the electron and ion orbits are strongly confined by intense magnetic field. Recently, magnetoplasma dynamics (MPD) has been investigated in connection with applications to the rocket thruster in USA, Germany, etc. It can be widely applicable, including modification of satellite position and propulsion of the interplanetary space shuttle. A long distance journey is possible because a small amount of neutral gases is needed for the plasma source. Besides, this will provide a pollution free engine for future generations. MPD thruster is not a chemical engine. We have built a Mather type MPD thruster, which has 1 kV max charging, 10 kA max current flows, and has about 1 ms characteristic operation time. The Paschen curve of this thruster is measured and its minimum breakdown voltage occurs in the pressure range of 0.1 to 1 Torr. Langmuir and double probes are fabricated to diagnose the sheath plasma from the thruster. The temperature and density are calculated to be 2.5 eV and 10/sup 15/ cm/sup -3/, respectively, from the probe data. Making use of photo diode, an optical probe is fabricated to measure propagation velocity of the sheath plasma. The sheath plasma from the MPD thruster in our experiment propagates with the velocity of 1 cm//spl mu/s. |
| File Size | 114649 |
| File Format | |
| ISBN | 0780352246 |
| ISSN | 07309244 |
| DOI | 10.1109/PLASMA.1999.829709 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1999-06-24 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Velocity measurement Plasma density Plasma measurements Plasma sheaths Plasma temperature Plasma confinement Magnetic confinement Probes Plasma applications Engines |
| Content Type | Text |
| Resource Type | Article |
| Subject | Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering |
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