PDX

The Poloidal Divertor Experiment (PDX) was a tokamak built in PPPL in the late 70's that was designed with a poloidal divertor. Its main goals were to study the effectiveness of the poloidal divertor in the control of impurities and instabilities, as well as the study of different plasma cross section shapes in the device. In 1982, PDX was modified into a closed divertor geometry and the outer divertor coils were removed. In 1983, PDX was shut down and was converted into PBX.