NSTX
Spherical Tokamak
Associated Organization:
Publications
Modeling temperature profiles in the pedestal of NSTX with reduced models
Nuclear Fusion, 2026
Fast-ion enhanced modeling of neoclassical tearing modes at NSTX and DIII-D
Plasma Physics and Controlled Fusion, 2026
Electron-Scale-Driven Turbulence by Negative-Density-Gradient in NSTX
arXiv (physics.plasm-ph), 2026
Interpretation of high-harmonic fast-wave propagation in the scrape-off layer of NSTX-U as a geometrically bounded-waveguide mode
Journal of Plasma Physics, 2026
The impact of kinetic and global effects on ideal ballooning 2nd stable pedestals of conventional and low aspect-ratio tokamaks
Nuclear Fusion, 2026
Transition to ELM-free improved H-mode by lithium deposition on NSTX graphite divertor surfaces
Journal of Nuclear Materials, 2009
Years Operated
1999 - 2012
The National Spherical Torus Experiment (NSTX) was a spherical tokamak built at PPPL. It began operations in February of 1999. The NSTX device was built with the objective of studying the behavior of the spherical tokamak configuration in the mega ampere regime. It was designed to work with a confinement magnetic field of 0.55 T and to reach a central temperature between 1 to 3 keV. In 2012, NSTX ended operations to undergo a mayor upgrade. Once this upgrade was finished, the device became NSTX-U.
