Analysis of information sources in references of the Wikipedia article "National Spherical Torus Experiment" in English language version.
$65,000,000 ... * Redesign and Replace the Inner Poloidal Field (PF) Coils : The six PF- I magnet coils would be replaced with new coils or improved design: they would be mandrel-less, have no joggles, and no braze joints. * Redesign and Replace Polar Regions of NSTX-U : The top and bottom of the NSTX-U device would be redesigned with numerous design improvements. All single 0-ring seals would be replaced by double 0-rings or a metallic structure, the PF-1c vacuum interface would be made more robust, one of either the upper or lower ceramic insulators would be eliminated, and the PF-lb coil supports would be thermally isolated from the vessel. * Redesign and Replace Plasma Facing Components.