| Title | Dependence of the threshold for perturbation field generated m/n=2/1 tearing modes on the plasma fluid rotation |
| Publication Type | Journal Article |
| Year of Publication | 2006 |
| Authors | H.R Koslowski, Y. Liang, A. Kramer-Flecken, K. Lobwenbruck, M. von Hellermann, E. Westerhof, RC Wolf, O. Zimmermann |
| Journal | Nuclear Fusion |
| Volume | 46 |
| Number | 8 |
| Pagination | L1-L5 |
| Date Published | Aug |
| Type of Article | Letter |
| ISBN Number | 0029-5515 |
| Accession Number | ISI:000240306700014 |
| Keywords | DIII-D, ERROR-FIELD, JET, TEXTOR, TOKAMAK |
| Abstract | The dynamic ergodic divertor (DED) on the TEXTOR tokamak allows for the creation of static and rotating helical magnetic perturbation fields. In the 3/1 configuration the strong m/n = 2/1 sideband excites a locked 2/1 tearing mode above a critical perturbation field strength. The mode onset threshold depends strongly on the plasma fluid rotation with respect to the mode. Rotation in plasma current direction destabilizes the mode in a certain range of rotation frequencies, whereas counter-rotation has a stabilizing influence. The threshold shows a minimum when the frequency of the external perturbation equals the MHD frequency of the mode. |
| URL | <Go to ISI>://000240306700014 |
| Division | Fusion Physics |
| Department | Instrumentation development |
| PID | add863dbdc060b066b1c39dce9201053 |
| Alternate Title | Nucl. Fusion |
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