Peer-Reviewed Journal Details
Mandatory Fields
J. Hobirk, R.C. Wolf, O. Gruber, A. Gude, S. GŁnter, B. Kurzan, M. Maraschek, P.J. Mc Carthy, H. Meister,A.G. Peeters, G.V. Pereversev, J. Stober, W. Treutterer and the ASDEX Upgrade Team;
2001
August
Physical Review Letters
Reaching high poloidal beta at Greenwald density with internal transport barrier close to full noninductive current drive
Validated
WOS: 27 ()
Optional Fields
REVERSED MAGNETIC SHEAR DIII-D TOKAMAK ASDEX UPGRADE ARBITRARY COLLISIONALITY IMPROVED CONFINEMENT BOOTSTRAP CURRENT DISCHARGES JT-60U ELECTRON PLASMAS
87
8
085002
In the ASDEX Upgrade tokamak, high poloidal beta up to beta (pol) = 3 at the Greenwald density with H-mode confinement has been reached. Because of the high beta, the plasma current is driven almost fully noninductively, consisting of 51% bootstrap and 43% neutral beam driven current. To reach these conditions the discharge is operated at low plasma current (I-P = 400 kA) and high neutral beam heating power (P-NBI = 10 MW). The discharge combines an edge (H mode) and internal transport barrier at high densities without confinement-limiting MHD activities. The extrapolation to higher plasma currents may offer a promising way for an advanced scenario based fusion reactor.
10.1103/PhysRevLett.87.085002
Grant Details