| Full text | |
| Author(s): |
Total Authors: 2
|
| Affiliation: | [1] Univ Sao Paulo, Inst Phys, BR-05315970 Sao Paulo - Brazil
[2] Univ Fed Goas, Dept Math IMTec, BR-75704020 Catalao - Brazil
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | Physics of Plasmas; v. 22, n. 6 JUN 2015. |
| Web of Science Citations: | 0 |
| Abstract | |
We investigate the magnetic field line transport for tokamak equilibria with monotonic magnetic shear perturbed by resonant fields. We show that when the local profile is flat at the plasma edge a transport barrier can be created leading to a field line transport reduction. This transport reduction is due to the field lines topological modifications, caused by a local flattened profile that reduces the global field lines escape pattern. The results are obtained by applying a symplectic map that describes perturbed magnetic field lines in large aspect ratio tokamaks. (C) 2015 AIP Publishing LLC. (AU) | |
| FAPESP's process: | 11/19296-1 - Nonlinear dynamics |
| Grantee: | Iberê Luiz Caldas |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 13/17989-5 - Nontwist phenomena in multi-dimensional Hamiltonian systems |
| Grantee: | Celso Vieira Abud |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |