Model B-2

Model B-2 was a bigger version of Model B-1. It still used 5 cm cross-section diameter tubes but also included a 50 cm long section with an expanded diameter. It used ohmic heating, which produced similar results to the ones obtained in B-1, including short confinement times.
Model B-2 was built to study the magnetic pumping process of heating. Although this process made it possible to reach higher temperatures, the presence of impurities and the short confinement times precluded the achievement of the expected temperature of 1 keV. This stellarator was exhibited at the United Nations' Second International Conference on the Peaceful Uses of Atomic Energy in Geneva, Switzerland.