ETUDE

The Étude stellarator was a device built and operated at Princeton University as part of Project Matterhorn (today PPPL). It was originally named A-2 but was renamed as Étude which is the french word for "study". It was a steady-state device with a racetrack geometry used mainly for the study of collective plasma behavior, drift waves, and ohmic heating. Étude had water cooled helical windings that produced a rotational transform and magnetic shear. It was built with 5 cm diameter stainless steel tubes and confining magnetic field of 0.67 T.