The Frascati Tokamak Upgrade is a tokamak

Tokamak

A tokamak is a device using a magnetic field to confine a plasma in the shape of a torus . Achieving a stable plasma equilibrium requires magnetic field lines that move around the torus in a helical shape...

 operating at Frascati

Frascati

Frascati is a town and comune in the province of Rome in the Lazio region of central Italy. It is located south-east of Rome, on the Alban Hills close to the ancient city of Tusculum. Frascati is closely associated with science, being the location of several international scientific...

, Italy

Italy

Italy , officially the Italian Republic languages]] under the European Charter for Regional or Minority Languages. In each of these, Italy's official name is as follows:;;;;;;;;), is a unitary parliamentary republic in South-Central Europe. To the north it borders France, Switzerland, Austria and...

. Building on the Frascati Tokamak experiment, FTU is a compact, high-magnetic-field tokamak (B_θ = 8 T

Tesla (unit)

The tesla is the SI derived unit of magnetic field B . One tesla is equal to one weber per square meter, and it was defined in 1960 in honour of the inventor, physicist, and electrical engineer Nikola Tesla...

). It began operation in 1990 and has since achieved operating goals of 1.6 MA at 8 T and average electron density greater than 4 per cubic meter.
The poloidal section of FTU is circular, with a limiter.

major radius	0.935 m
minor radius	0.30 m
magnetic field	< 8 T Tesla (unit) The tesla is the SI derived unit of magnetic field B . One tesla is equal to one weber per square meter, and it was defined in 1960 in honour of the inventor, physicist, and electrical engineer Nikola Tesla...
plasma current	< 1.6 MA
discharge duration	1.7 s Second The second is a unit of measurement of time, and is the International System of Units base unit of time. It may be measured using a clock....