Shull Wollan Center—A Joint Institute for Neutron Sciences Published on April 1, 2016 in UT Trustees Approve Renaming of the Joint Institute for Neutron SciencesFull resolution (2012 × 1599) Ernest Wollan (left) and Clifford Shull (right) work with a double-crystal neutron spectrometer at the ORNL X-10 Graphite Reactor in 1949. (Credit: ORNL)