Abstract :
At the Atomic Energy Commission´s National Reactor Testing Station near Idaho Falls, Ida., the Boiling Reactor Experiment No. 5 (Borax-5) has achieved initial criticality. This self-sustaining chain reaction was reached with an arrangement of 14 nuclear fuel assemblies, containing a total of 11.2 kilograms of uranium-235. After a period of testing and reactor calibration, components to provide superheating of steam will be installed in the reactor core.
