Publication

Theoretical studies of non inductive current drive in compact toroids

Farengo, R., Lifschitz, AF., Caputi, KI., Arista, NR. & Clemente, RA., Mar-2002, In : Brazilian Journal of Physics. 32, 1, p. 65-75 11 p.

Research output: Contribution to journalArticleAcademicpeer-review

  • R Farengo
  • AF Lifschitz
  • KI Caputi
  • NR Arista
  • RA Clemente

Three non inductive current drive methods that can be applied to compact toroids axe studied. The use of neutral beams to drive current in field reversed configurations and spheromaks is studied using a Monte Carlo code that includes a complete ionization package and follows the exact particle orbits in a self-consistent equilibrium calculated including the beam and plasma currents, Rotating magnetic fields are investigated as a current drive method for spherical tokamaks by employing a two dimensional model with fixed ions and massless electrons. The time evolution of the axial components of the magnetic field and vector potential is obtained by combining an Ohm's law that includes the Hall term with Maxwell's equations. The use of helicity injection to sustain a flux core spheromak is studied using the principle of minimum rate of energy dissipation. The Euler-Lagrange equations obtained using helicity balance as a constraint axe solved to determine the current and magnetic field profiles of the relaxed states.

Original languageEnglish
Pages (from-to)65-75
Number of pages11
JournalBrazilian Journal of Physics
Volume32
Issue number1
Publication statusPublished - Mar-2002
Event14th Technical-Committee-Meeting on Research Using Small Fusion Devices (TCM/RUSFD) - SAO PAULO, Brazil
Duration: 25-Jun-200127-Jun-2001

Event

14th Technical-Committee-Meeting on Research Using Small Fusion Devices (TCM/RUSFD)

25/06/200127/06/2001

Brazil

Event: Conference

    Keywords

  • FIELD CURRENT DRIVE, REVERSED CONFIGURATION, HELICITY INJECTION, CONFINEMENT

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