Transport of magnetic field lines and particles in tokamaks and plasma modeling fo...
| Grant number: | 24/04557-4 |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| Start date: | December 01, 2024 |
| End date: | November 30, 2027 |
| Field of knowledge: | Physical Sciences and Mathematics - Physics |
| Principal Investigator: | Iberê Luiz Caldas |
| Grantee: | Rodrigo Simile Baroni |
| Host Institution: | Instituto de Física (IF). Universidade de São Paulo (USP). São Paulo , SP, Brazil |
Abstract The tokamak is an important device for research in controlled nuclear fusion, where plasma is confined by magnetic fields to achieve the necessary conditions for fusion. In this project, using an analytic model of the equilibrium magnetic field obtained through polar toroidal coordinates, internal and external magnetic perturbations will be incorporated. Dynamic analysis, based on numerical tools of Dynamical Systems, will be developed to understand configurations that optimize confinement. The study covers aspects such as chaotic field line transport, formation of transport barriers, and fractal structures such as escape basin boundaries. New diagnostics on chaotic transport will also be considered, such as the analysis of the time required to reach escape conditions and the characterization of trajectories through recurrence measures. Geometric structures in phase space will be analyzed with projections of Lagrangian descriptors and finite-time rotation number. The project aims to contribute to the understanding and improvement of magnetic confinement in tokamaks, as well as to provide relevant insights for controlled nuclear fusion research. | |
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