Title :
Current drive and profile control for the ARIES-III second-stability advanced-fuel tokamak reactor
Author :
Mau, T.K. ; Mandrekas, J. ; Ehst, D.A. ; Whealton, J.H.
fDate :
30 Sep-3 Oct 1991
Abstract :
Neutral-beam current drive (NBCD) has been studied as a steady-state operating scenario in ARIES-III, an advanced-fuel, second-stability tokamak reactor. To fulfill the roles of driving currents in opposite directions and of profile control during start-up, the NBCD system is found to be complicated, having three beamlines located in two ports. The total current drive power at steady state is 170 MW, with an effective efficiency of 0.04 A/W. The required variable beam-energy range (1-6 MeV) dictates the use of negative ion sources, RFQs (radio-frequency quadrupole accelerators), funnels, DTLs, and plasma neutralizers, for which an extensive database has yet to be established. A large R&D program is necessary to upgrade the performance of the system components to achieve the projected efficiency of 72%
Keywords :
Tokamak devices; fusion reactor theory and design; plasma heating; plasma-beam interactions; ARIES-III second-stability advanced-fuel tokamak reactor; beamlines; negative ion sources; neutral-beam current drive; plasma neutralizers; profile control; radio-frequency quadrupole accelerators; Control systems; Databases; Inductors; Ion accelerators; Ion sources; Plasma accelerators; Plasma sources; Radio frequency; Steady-state; Tokamaks;
Conference_Titel :
Fusion Engineering, 1991. Proceedings., 14th IEEE/NPSS Symposium on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0132-3
DOI :
10.1109/FUSION.1991.218931
