Add to ORKGSaturated internal kink modes have been observed in many of the highest toroidal β discharges of the National Spherical Torus Experiment (NSTX). These modes often cause rotation flattening in the plasma core, can degrade fast-ion confinement, and in some cases contribute to the complete loss of plasma angular momentum and stored energy. Characteristics of the modes are measured using soft X-ray, kinetic profile, and magnetic diagnostics. Toroidal flows approaching Alfvénic speeds, island pressure peaking, and enhanced viscous and diamagnetic effects associated with high-β may contribute to mode non-linear stabilization. These saturation mechanisms are investigated for NSTX parameters and compared to experimental data. PACS numbers: 52.55.F...
The low-aspect ratio, low magnetic field and wide range of plasma beta of NSTX plasmas provide new i...
Recent upgrades to the NSTX facility have led to improved plasma performance. Using 5MW of neutral b...
A major research goal of the National Spherical Torus Experiment is establishing long-pulse, high-be...
Saturated internal kink modes have been observed in many of the highest toroidal {beta} discharges o...
Saturated internal kink modes have been observed in many of the highest toroidal beta discharges of ...
Plasmas in spherical and conventional tokamaks, with weakly reversed shear q pro le and minimum q ab...
The National Spherical Torus Experiment (NSTX) has demonstrated the advantages of low aspect ratio g...
The multilevel physics, massively parallel plasma simulation code, M3D, has been used to study spher...
The National Spherical Torus Experiment (NSTX) has demonstrated the advantages of low aspect ratio g...
The National Spherical Torus Experiment (NSTX) has undergone a major upgrade, and the NSTX Upgrade (...
The National Spherical Torus Experiment (NSTX) has undergone a major upgrade, and the NSTX Upgrade (...
The major objective of the National Spherical Torus Experiment (NSTX) is to understand basic toroida...
The major objective of the National Spherical Torus Experiment (NSTX) is to understand basic toroida...
The National Spherical Torus Experiment (NSTX) produces plasmas with toroidal aspect ratio as low as...
An extensive numerical study has been carried out for internal modes with toroidal mode number unity...
The low-aspect ratio, low magnetic field and wide range of plasma beta of NSTX plasmas provide new i...
Recent upgrades to the NSTX facility have led to improved plasma performance. Using 5MW of neutral b...
A major research goal of the National Spherical Torus Experiment is establishing long-pulse, high-be...
Saturated internal kink modes have been observed in many of the highest toroidal {beta} discharges o...
Saturated internal kink modes have been observed in many of the highest toroidal beta discharges of ...
Plasmas in spherical and conventional tokamaks, with weakly reversed shear q pro le and minimum q ab...
The National Spherical Torus Experiment (NSTX) has demonstrated the advantages of low aspect ratio g...
The multilevel physics, massively parallel plasma simulation code, M3D, has been used to study spher...
The National Spherical Torus Experiment (NSTX) has demonstrated the advantages of low aspect ratio g...
The National Spherical Torus Experiment (NSTX) has undergone a major upgrade, and the NSTX Upgrade (...
The National Spherical Torus Experiment (NSTX) has undergone a major upgrade, and the NSTX Upgrade (...
The major objective of the National Spherical Torus Experiment (NSTX) is to understand basic toroida...
The major objective of the National Spherical Torus Experiment (NSTX) is to understand basic toroida...
The National Spherical Torus Experiment (NSTX) produces plasmas with toroidal aspect ratio as low as...
An extensive numerical study has been carried out for internal modes with toroidal mode number unity...
The low-aspect ratio, low magnetic field and wide range of plasma beta of NSTX plasmas provide new i...
Recent upgrades to the NSTX facility have led to improved plasma performance. Using 5MW of neutral b...
A major research goal of the National Spherical Torus Experiment is establishing long-pulse, high-be...