This title appears in the Scientific Report :
2002
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevLett.88.105001 in citations.
Please use the identifier: http://hdl.handle.net/2128/1778 in citations.
Control of neoclassical tearing modes by Sawtooth control
Control of neoclassical tearing modes by Sawtooth control
The onset of a neoclassical tearing mode (NTM) depends on the existence of a large enough seed island. It is shown in the Joint European Torus that NTMs can be readily destabilized by long-period sawteeth, such as obtained by sawtooth stabilization from ion-cyclotron heating or current drive. This h...
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Personal Name(s): | Sauter, O. |
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Westerhof, E. / Mayoral, I. C. / Alper, B. / Balo, P. A. / Gondhalekar, A. / Hellsten, T. / Hender, T. C. / Howell, D. F. / Johnson, T. / Lamalle, P. / Mantsinen, M. J. / Milani, F. / Nave, M. F. F. / Nguyen, C. J. / Pecquet, A. L. / Pinches, S. D. / Podda, S. / Rapp, J. | |
Contributing Institute: |
Institut für Plasmaphysik; IPP |
Published in: | Physical review letters, 88 (2002) S. 105001 |
Imprint: |
College Park, Md.
APS
2002
|
Physical Description: |
105001 |
DOI: |
10.1103/PhysRevLett.88.105001 |
Document Type: |
Journal Article |
Research Program: |
Kernfusion und Plasmaforschung |
Series Title: |
Physical Review Letters
88 |
Subject (ZB): | |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/1778 in citations.
The onset of a neoclassical tearing mode (NTM) depends on the existence of a large enough seed island. It is shown in the Joint European Torus that NTMs can be readily destabilized by long-period sawteeth, such as obtained by sawtooth stabilization from ion-cyclotron heating or current drive. This has important implications for burning plasma scenarios, as alpha particles strongly stabilize the sawteeth. It is also shown that, by adding heating and current drive just outside the inversion radius, sawteeth are destabilized, resulting in shorter sawtooth periods and larger beta values being obtained without NTMs. |