The FTU Frascati tokamak upgrade

The FTU (Frascati Tokamak Upgrade) aims to achieve high values of ntau and temperature. High densities and confinement times should be reached by the use of high magnetic fields (8T) and reduced size and a strong lower hybrid additional heating (8 MW at 8 GHz) will be applied to raise plasma temperature. The main features of the machine are: liquid nitrogen cooling, to reduce controll, all stainless steel vacuum chamber, liner and limiter structures. The machine is presently in an advanced construction stage. The new 250 MVA flywheel generator and few component parts are already in Frascati in the new buildings and the project team is pushing to keep the envisaged timing that should see the first operation of the machine at room temperature at the end of 1987