New high rotation mode in magnetized rotating plasmas
| Autor: | Andrew Case, Richard Ellis, Adil Hassam, Sarah Messer, Catalin Teodorescu, Robert Lunsford, Ryan Clary |
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| Rok vydání: | 2006 |
| Předmět: |
Physics
business.industry Magnetic confinement fusion Plasma Condensed Matter Physics Rotation Magnetic field Computational physics symbols.namesake Optics Nuclear Energy and Engineering Mach number Physics::Plasma Physics Electric field Physics::Space Physics symbols Magnetohydrodynamic drive Magnetohydrodynamics business |
| Zdroj: | Plasma Physics and Controlled Fusion. 48:945-954 |
| ISSN: | 1361-6587 0741-3335 |
| Popis: | A new high-rotation (HR) mode of operation is reported for magnetized rotating plasmas. Plasma is produced by an externally applied radial electric field in the Maryland centrifugal experiment, a mirror magnetic field plasma rotating azimuthally. The HR mode is achieved by optimizing over the discharge current. Previously reported stationary or steadily declining plasma voltages are now replaced by time-increasing voltages in the HR mode, with maximum voltages significantly higher than those previously recorded. Sonic Mach numbers are close to the theoretical values required for centrifugal confinement and for suppressing large scale magnetohydrodynamic (MHD) instabilities. Plasma momentum confinement time is much longer than the MHD instability time scale and longer than in ordinary mode operation. The mode is sustained over several confinement times. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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