Santa Susanna Field Laboratory - Building 59. Construction completed in 1965. Designed for long-term testing of SNAP reactors and later modified to perform non-nuclear testing. Demolition began in october 2003. Underground test vault, 55 feet below the surface. Reactor vault and test cell constructed of 3-foot thick concrete and lined with steel. Reactor tests performed in vacuum chamber to simulate outer space.
U.S. Department of Energy
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