Influence of plasma equilibrium on chaotic transport in tokamaks
Fusion plasma applications and modeling of low temperature plasmas
Transport of magnetic field lines and particles in tokamaks and plasma modeling fo...
| Full text | |
| Author(s): |
Haerter, P.
;
de Souza, L. C.
;
Mathias, A. C.
;
Viana, R. L.
;
Caldas, I. L.
Total Authors: 5
|
| Document type: | Journal article |
| Source: | INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS; v. 33, n. 09, p. 12-pg., 2023-07-01. |
| Abstract | |
The structure of magnetic field lines in toroidal fusion plasmas, as in tokamaks and stellarators, represents the lowest-order description of the plasma particle behavior, up to finite Larmor and drift effects. Tokamaks with reversed magnetic shear typically present internal transport barriers that help to improve confinement through a partial or total reduction of the particle transport across magnetic surfaces. In this work, we investigate numerically particle escape in tokamaks with reversed shear in order to identify fractal structures affecting transport. These structures are quantitatively evaluated using two basic measures: the basin entropy and the Wada property. (AU) | |
| FAPESP's process: | 22/04251-7 - Fractal Structures in Plasma Physics |
| Grantee: | Iberê Luiz Caldas |
| Support Opportunities: | Research Grants - Visiting Researcher Grant - Brazil |
| FAPESP's process: | 18/03211-6 - Non linear dynamics |
| Grantee: | Iberê Luiz Caldas |
| Support Opportunities: | Research Projects - Thematic Grants |