Formation and sustainment of internal transport barriers in the International Thermonuclear Experimental Reactor with the baseline heating mix

Journal Article · Wed May 15 00:00:00 EDT 2013 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4802937· OSTI ID:22228077

Poli, Francesca M.; Kessel, Charles E. ^[1]

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1. Princeton Plasma Physics laboratory, Princeton, New Jersey 08543 (United States)

Plasmas with internal transport barriers (ITBs) are a potential and attractive route to steady-state operation in ITER. These plasmas exhibit radially localized regions of improved confinement with steep pressure gradients in the plasma core, which drive large bootstrap current and generate hollow current profiles and negative magnetic shear. This work examines the formation and sustainment of ITBs in ITER with electron cyclotron heating and current drive. The time-dependent transport simulations indicate that, with a trade-off of the power delivered to the equatorial and to the upper launcher, the sustainment of steady-state ITBs can be demonstrated in ITER with the baseline heating configuration.

• OSTI ID: 22228077
• Journal Information: Physics of Plasmas, Vol. 20, Issue 5; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BOOTSTRAP CURRENT
CHARGED-PARTICLE TRANSPORT
ECR HEATING
EXPERIMENTAL REACTORS
ITER TOKAMAK
PLASMA
PLASMA CONFINEMENT
PLASMA PRESSURE
PLASMA SIMULATION
PRESSURE GRADIENTS
RF SYSTEMS
SHEAR
STEADY-STATE CONDITIONS
TIME DEPENDENCE