الوصفA night-time view of the U.K.A.E.A.’s 250-megawatt prototype fast reactor (PFR) Dounreay, at Caithness, Scotland. The reactor is now operating at low nuclear power, and following final tests, power will be gradually increased and electricity generation commenced. PLEASE CREDIT: United Kingdom Atomic Energy Authority (IAEA Bulletin Volume 16, Number 3 – June 1974)