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Beta limits for the N=1 mode in rotating-toroidal-resistive plasmas surrounded by a resistive wall
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| Zeitschriftentitel: | Physics of Plasmas |
|---|---|
| Personen und Körperschaften: | |
| In: | Physics of Plasmas, 5, 1998, 10, S. 3615-3631 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
AIP Publishing
|
| Schlagwörter: |
| author_facet |
Betti, R. Betti, R. |
|---|---|
| author |
Betti, R. |
| spellingShingle |
Betti, R. Physics of Plasmas Beta limits for the N=1 mode in rotating-toroidal-resistive plasmas surrounded by a resistive wall Condensed Matter Physics |
| author_sort |
betti, r. |
| spelling |
Betti, R. 1070-664X 1089-7674 AIP Publishing Condensed Matter Physics http://dx.doi.org/10.1063/1.872746 <jats:p>The stability analysis of a high-β toroidal tokamak plasma is carried out in the presence of toroidal flow, finite plasma resistivity, and a surrounding shell of finite electrical resistivity. The beta limits for the n=1 mode are set by the resistive-wall-tearing mode (RWTM), the ideal-wall-tearing mode (IWTM), and the ideal-plasma-resistive-wall mode (IPRWM). Slow plasma rotation suppresses the RWTM while the IPRWM is not directly affected by slow plasma flow. For small plasma resistivity, the IPRWM is stabilized by fast flow only. For large plasma resistivity, the IPRWM only exists in a plasma rotating faster than the typical tearing mode growth rate, and its instability threshold is a complicated function of the wall position and rotation frequency. Very fast rotation can destabilize the ideal kink through centrifugal effects. Furthermore, for b/a (wall radius/plasma radius) below a critical value, a stationary plasma is stable to the n=1 ideal kink and tearing mode for large values of β.</jats:p> Beta limits for the N=1 mode in rotating-toroidal-resistive plasmas surrounded by a resistive wall Physics of Plasmas |
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10.1063/1.872746 |
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AIP Publishing, 1998 |
| imprint_str_mv |
AIP Publishing, 1998 |
| issn |
1089-7674 1070-664X |
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1998 |
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AIP Publishing |
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| series |
Physics of Plasmas |
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49 |
| title |
Beta limits for the N=1 mode in rotating-toroidal-resistive plasmas surrounded by a resistive wall |
| title_unstemmed |
Beta limits for the N=1 mode in rotating-toroidal-resistive plasmas surrounded by a resistive wall |
| title_full |
Beta limits for the N=1 mode in rotating-toroidal-resistive plasmas surrounded by a resistive wall |
| title_fullStr |
Beta limits for the N=1 mode in rotating-toroidal-resistive plasmas surrounded by a resistive wall |
| title_full_unstemmed |
Beta limits for the N=1 mode in rotating-toroidal-resistive plasmas surrounded by a resistive wall |
| title_short |
Beta limits for the N=1 mode in rotating-toroidal-resistive plasmas surrounded by a resistive wall |
| title_sort |
beta limits for the n=1 mode in rotating-toroidal-resistive plasmas surrounded by a resistive wall |
| topic |
Condensed Matter Physics |
| url |
http://dx.doi.org/10.1063/1.872746 |
| publishDate |
1998 |
| physical |
3615-3631 |
| description |
<jats:p>The stability analysis of a high-β toroidal tokamak plasma is carried out in the presence of toroidal flow, finite plasma resistivity, and a surrounding shell of finite electrical resistivity. The beta limits for the n=1 mode are set by the resistive-wall-tearing mode (RWTM), the ideal-wall-tearing mode (IWTM), and the ideal-plasma-resistive-wall mode (IPRWM). Slow plasma rotation suppresses the RWTM while the IPRWM is not directly affected by slow plasma flow. For small plasma resistivity, the IPRWM is stabilized by fast flow only. For large plasma resistivity, the IPRWM only exists in a plasma rotating faster than the typical tearing mode growth rate, and its instability threshold is a complicated function of the wall position and rotation frequency. Very fast rotation can destabilize the ideal kink through centrifugal effects. Furthermore, for b/a (wall radius/plasma radius) below a critical value, a stationary plasma is stable to the n=1 ideal kink and tearing mode for large values of β.</jats:p> |
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| author | Betti, R. |
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| container_title | Physics of Plasmas |
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| description | <jats:p>The stability analysis of a high-β toroidal tokamak plasma is carried out in the presence of toroidal flow, finite plasma resistivity, and a surrounding shell of finite electrical resistivity. The beta limits for the n=1 mode are set by the resistive-wall-tearing mode (RWTM), the ideal-wall-tearing mode (IWTM), and the ideal-plasma-resistive-wall mode (IPRWM). Slow plasma rotation suppresses the RWTM while the IPRWM is not directly affected by slow plasma flow. For small plasma resistivity, the IPRWM is stabilized by fast flow only. For large plasma resistivity, the IPRWM only exists in a plasma rotating faster than the typical tearing mode growth rate, and its instability threshold is a complicated function of the wall position and rotation frequency. Very fast rotation can destabilize the ideal kink through centrifugal effects. Furthermore, for b/a (wall radius/plasma radius) below a critical value, a stationary plasma is stable to the n=1 ideal kink and tearing mode for large values of β.</jats:p> |
| doi_str_mv | 10.1063/1.872746 |
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| id | ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTA2My8xLjg3Mjc0Ng |
| imprint | AIP Publishing, 1998 |
| imprint_str_mv | AIP Publishing, 1998 |
| institution | DE-Bn3, DE-Brt1, DE-D161, DE-Gla1, DE-Zi4, DE-15, DE-Rs1, DE-Pl11, DE-105, DE-14, DE-Ch1, DE-L229, DE-D275 |
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| issn_str_mv | 1089-7674, 1070-664X |
| language | English |
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| physical | 3615-3631 |
| publishDate | 1998 |
| publishDateSort | 1998 |
| publisher | AIP Publishing |
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| series | Physics of Plasmas |
| source_id | 49 |
| spelling | Betti, R. 1070-664X 1089-7674 AIP Publishing Condensed Matter Physics http://dx.doi.org/10.1063/1.872746 <jats:p>The stability analysis of a high-β toroidal tokamak plasma is carried out in the presence of toroidal flow, finite plasma resistivity, and a surrounding shell of finite electrical resistivity. The beta limits for the n=1 mode are set by the resistive-wall-tearing mode (RWTM), the ideal-wall-tearing mode (IWTM), and the ideal-plasma-resistive-wall mode (IPRWM). Slow plasma rotation suppresses the RWTM while the IPRWM is not directly affected by slow plasma flow. For small plasma resistivity, the IPRWM is stabilized by fast flow only. For large plasma resistivity, the IPRWM only exists in a plasma rotating faster than the typical tearing mode growth rate, and its instability threshold is a complicated function of the wall position and rotation frequency. Very fast rotation can destabilize the ideal kink through centrifugal effects. Furthermore, for b/a (wall radius/plasma radius) below a critical value, a stationary plasma is stable to the n=1 ideal kink and tearing mode for large values of β.</jats:p> Beta limits for the N=1 mode in rotating-toroidal-resistive plasmas surrounded by a resistive wall Physics of Plasmas |
| spellingShingle | Betti, R., Physics of Plasmas, Beta limits for the N=1 mode in rotating-toroidal-resistive plasmas surrounded by a resistive wall, Condensed Matter Physics |
| title | Beta limits for the N=1 mode in rotating-toroidal-resistive plasmas surrounded by a resistive wall |
| title_full | Beta limits for the N=1 mode in rotating-toroidal-resistive plasmas surrounded by a resistive wall |
| title_fullStr | Beta limits for the N=1 mode in rotating-toroidal-resistive plasmas surrounded by a resistive wall |
| title_full_unstemmed | Beta limits for the N=1 mode in rotating-toroidal-resistive plasmas surrounded by a resistive wall |
| title_short | Beta limits for the N=1 mode in rotating-toroidal-resistive plasmas surrounded by a resistive wall |
| title_sort | beta limits for the n=1 mode in rotating-toroidal-resistive plasmas surrounded by a resistive wall |
| title_unstemmed | Beta limits for the N=1 mode in rotating-toroidal-resistive plasmas surrounded by a resistive wall |
| topic | Condensed Matter Physics |
| url | http://dx.doi.org/10.1063/1.872746 |