In 1956, Dr. Clyde Cowan and Dr. Frederick Reines came from Los Alamos to perform an experiment in which they proved the existence of the neutrino and plugged some theoretical holes in the First Law of Thermodynamics.  This work later received a Nobel Prize.  Dr. Reines called the SRP reactors “the finest in the world” for their purposes. Today, all reactor operations have been permanently shut down and P reactor, where the scientists did their experiments, is undergoing complete deactivation and decommissioning.
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<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/51009184@N06/5228303408/">SRS at 60 -- The Discovery of Neutrinos</a>