B Reactor can take a tour of the reactor by advance reservation. The reactor was designed and built by E. I. du Pont de Nemours and Company based on experimental designs tested by Enrico Fermi at the University of Chicago, and tests from the X-10 Graphite Reactor at Oak Ridge National Laboratory. It was designed to operate at 250 megawatts (thermal). The reactor occupies a footprint of (about and is tall, occupying a volume of . The reactor core itself consisted of a graphite box measuring occupying a volume of and weighing . It was penetrated horizontally through its entire length by
R4 nuclear reactor the pressure vessel and containment building were subsequently used for experiments into reactor behaviour under accident conditions. The Nuclear reactor, the oil fired power station and surronding 250 hectares of land and water was acquired by Synthesis Real Estate during 2018. This reactor was built as part of the budding nuclear program for Sweden. This reactor's construction began some time during the Cold War(presumably the 1960s). The large facility was intended to bring power as well as provide plutonium for this upcoming nuclear program. Though, the construction ended in the 1960s, when the nuclear ambition of Sweden was killed. Part