MHD Instabilities Occurring Near/AT the Transport Barrier, Including Loss of Confinement in H-Modes

Conference · Wed Sep 01 00:00:00 EDT 1999

OSTI ID:766652

Lao, L L

In configurations with transport barriers the improved edge and core confinement leads to large pressure gradient and large edge bootstrap current density which often drive magnetohydrodynamic (MHD) instabilities terminating the discharge or reducing the discharge performance. The edge and the core transport barriers deteriorate or are completely lost. In this presentation, recent experimental and theoretical developments concerning MHD instabilities occurring near/at the edge and the core transport barriers are summarized emphasizing the dominant instabilities and the comparison with theory.

• Research Organization: General Atomics, San Diego, CA (US)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: AC03-99ER54463
• OSTI ID: 766652
• Report Number(s): GA-A23255; TRN: US0109249
• Resource Relation: Conference: Seventh International Atomic Energy Agency Technical Committee Meeting on H-Mode and Transport Barrier Physics, Oxford (GB), 09/27/1999--09/29/1999; Other Information: PBD: 1 Sep 1999
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BOOTSTRAP CURRENT
MAGNETOHYDRODYNAMICS
PERFORMANCE
PRESSURE GRADIENTS
H-MODE PLASMA CONFINEMENT
PLASMA INSTABILITY