This title appears in the Scientific Report :
2006
Please use the identifier:
http://hdl.handle.net/2128/1909 in citations.
Please use the identifier: http://dx.doi.org/10.1088/0029-5515/46/8/L01 in citations.
Dependence of the threshold for perturbation field generated m/n = 2/1 tearing modes on the plasma fluid rotation
Dependence of the threshold for perturbation field generated m/n = 2/1 tearing modes on the plasma fluid rotation
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 threshol...
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Personal Name(s): | Koslowski, H. R. |
---|---|
Liang, Y. / Krämer-Flecken, A. / Löwenbrück, K. / von Hellermann, M. / Westerhof, E. / Wolf, R. C. / Zimmermann, O. | |
Contributing Institute: |
Institut für Plasmaphysik; IPP |
Published in: | Nuclear fusion, 46 (2006) S. L1 - L5 |
Imprint: |
Vienna
IAEA
2006
|
Physical Description: |
L1 - L5 |
DOI: |
10.1088/0029-5515/46/8/L01 |
Document Type: |
Journal Article |
Research Program: |
Fusion |
Series Title: |
Nuclear Fusion
46 |
Subject (ZB): | |
Link: |
Get full text OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1088/0029-5515/46/8/L01 in citations.
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. |