Symplectic transport in fusion diverted plasmas

• Grant number: 12/18073-1
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: November 01, 2012
• End date: December 31, 2016
• Field of knowledge: Physical Sciences and Mathematics - Physics - Physics of Fluids, Plasma Physics and Electrical Discharge
• Principal Investigator: Iberê Luiz Caldas
• Grantee: David Ciro Taborda
• Host Institution: Instituto de Física (IF). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated research grant: 11/19296-1 - Nonlinear dynamics, AP.TEM
• Associated scholarship(s): 14/03899-7 - Magnetic perturbations and plasma response in diverted plasmas, BE.EP.DR

Abstract

The present research project is aimed to study magnetically confined plasmas in modern tokamaks. This includes the description of the MHD equilibrium in diverted, small aspect-ratio equilibria. The solution of the Grad-Shafranov equation will provide the internal and edge magnetic field of the plasma in various configurations. From those equilibria the development of symplectic maps will provide the behavior of the magnetic lines, even in the case were small perturbations destroy the equilibrium axisymmetry and the system is no longer integrable. The magnetic transport and magnetic footprints in the divertor plates bring relevant information about charge deposition from the Scrape-off layer. (AU)

Scientific publications

(7)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

BARTOLONI, B.; SCHELIN, A. B.; CALDAS, I. L.. Shearless bifurcation on symplectic maps of magnetic field lines in tokamaks with reversed current. Physics Letters A, v. 380, n. 31-32, p. 2416-2421, JUL 15 2016. (12/18073-1, 11/19296-1)

CALDAS, IBERE LUIZ; BARTOLONI, BRUNO F.; CIRO, DAVID; ROBERSON, GERALDO; SCHELIN, ADRIANE B.; KROETZ, TIAGO; ROBERTO, MARISA; VIANA, RICARDO LUIZ; IAROSZ, KELLY CRISTIANE; BATISTA, ANTONIO MARCOS; et al. Symplectic Maps for Diverted Plasmas. IEEE TRANSACTIONS ON PLASMA SCIENCE, v. 46, n. 7, 1, SI, p. 2354-2361, JUL 2018. (15/07311-7, 11/19296-1, 12/18073-1)

CIRO, D.; CALDAS, I. L.. Magnetic topology and current channels in plasmas with toroidal current density inversions. Physics of Plasmas, v. 20, n. 10, OCT 2013. (12/18073-1, 11/19296-1)

CIRO, D.; CALDAS, I. L.. A semi-analytical solver for the Grad-Shafranov equation. Physics of Plasmas, v. 21, n. 11, NOV 2014. (12/18073-1)

CIRO, D.; EVANS, T. E.; CALDAS, I. L.. Modeling non-stationary, non-axisymmetric heat patterns in DIII-D tokamak. NUCLEAR FUSION, v. 56, n. 1, JAN 2017. (12/18073-1, 14/03899-7)

CALDAS, IBERE LUIZ; BARTOLONI, BRUNO F.; CIRO, DAVID; ROBERSON, GERALDO; SCHELIN, ADRIANE B.; KROETZ, TIAGO; ROBERTO, MARISA; VIANA, RICARDO LUIZ; IAROSZ, KELLY CRISTIANE; BATISTA, ANTONIO MARCOS; et al. Symplectic Maps for Diverted Plasmas. IEEE TRANSACTIONS ON PLASMA SCIENCE, v. 46, n. 7, p. 8-pg., 2018-07-01. (12/18073-1, 11/19296-1, 15/07311-7)

CIRO, DAVID; CALDAS, IBERE L.; VIANA, RICARDO L.; EVANS, TODD E.. Efficient manifolds tracing for planar maps. Chaos, v. 28, n. 9, SEP 2018. (11/19296-1, 12/18073-1)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

TABORDA, David Ciro. Magnetic field modeling for non-axisymmetric tokamak discharges. 2016. Doctoral Thesis - Universidade de São Paulo (USP). Instituto de Física (IF/SBI) São Paulo.