First proposed by Freedman in 1974, coherent elastic neutrino-nucleus scattering (CEvNS) is the dominant low energy neutrino coupling and provides a window to many interesting areas of physics research: nuclear structure, physics beyond the Standard Model, and supernovae evolution and detection. The COHERENT collaboration recently observed CEvNS with a low background 14.6 kg CsI[Na] crystal at the Spallation Neutron Source (SNS) at Oak Ridge National Lab. A primary goal of COHERENT is to measure the...