Model B-65

Model B-65 was a race-track shaped stellarator built at Princeton University. It was the first race-track device with helical windings to provide rotational transform and magnetic shear. It also included Model B64's divertor which improved the heating, which led to reported temperatures above 100 eV. Model B-65 was also used for the first high power ion-cyclotron heating experiments using deuterium.