Journal article
Evidence of Inward Toroidal Momentum Convection in the JET Tokamak
Association EURATOM-Tekes1
United Kingdom Atomic Energy Authority2
Euratom Association-IST3
National Research Council of Italy4
Plasma Physics and Technology Programme, Risø National Laboratory for Sustainable Energy, Technical University of Denmark5
Risø National Laboratory for Sustainable Energy, Technical University of Denmark6
University of Warwick7
Max Planck Institute8
National Technical University of Athens9
Experiments have been carried out on the Joint European Torus tokamak to determine the diffusive and convective momentum transport. Torque, injected by neutral beams, was modulated to create a periodic perturbation in the toroidal rotation velocity. Novel transport analysis shows the magnitude and profile shape of the momentum diffusivity are similar to those of the ion heat diffusivity.
A significant inward momentum pinch, up to 20 m/s, has been found. Both results are consistent with gyrokinetic simulations. This evidence is complemented in plasmas with internal transport barriers.
| Language: | English |
|---|---|
| Publisher: | American Physical Society |
| Year: | 2009 |
| Pages: | 075001 |
| ISSN: | 10797114 and 00319007 |
| Types: | Journal article |
| DOI: | 10.1103/PhysRevLett.102.075001 |
| ORCIDs: | Naulin, Volker |
