Universities Research Reactor, Nuclear research reactor in Risley, Warrington, England.
The Universities Research Reactor was a nuclear research facility in Risley, Warrington with a core made of six aluminum tanks, surrounded by graphite and managed by four semaphore-type control rods. The installation could increase power from 100 to 300 kilowatts thermal and used highly enriched uranium metal fuel in aluminum cladding.
The reactor was jointly operated by Manchester and Liverpool universities and began operations on July 7, 1964. After more than two decades of service, the facility was shut down in 1991.
The facility served as a training ground where students gained hands-on experience with nuclear technology and conducted experiments in nuclear physics. This practical approach shaped the education of several generations of scientists and engineers in the field.
The facility was open to visitors but required strict safety protocols and access controls due to the presence of nuclear materials. Visits were best arranged through the operating universities during their academic calendar when guided tours were offered to groups.
The concrete shielding featured specially designed holes that allowed neutron beams to be directed at samples for irradiation experiments. This innovative design connected directly to an adjoining radiochemical laboratory, letting researchers immediately analyze irradiated materials without moving them.
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