The Delaire group uses inelastic neutron scattering (INS) to measure phonons and magnons in crystalline materials, typically as a function of temperature, and sometimes under applied external fields (electric/magnetic fields). Prev Next Olivier doing measurements on the SPINS triple-axis spectrometer at the NIST Center for Neutron Research. HYSPEC neutron spectrometer at the Spallation Neutron Source. HYSPEC neutron spectrometer at the Spallation Neutron Source. Delaire group with instrument scientist Barry Winn, performing phonon measurements in ferroelectrics with HYSPEC. Left to right: Jen, Barry, Chengtao, Dipanshu. Jen mounting sample for INS measurements on ARCS. Dipanshu and Jen loading the sample into the vacuum chamber of the ARCS neutron spectrometer. Delaire group performing neutron scattering measurements with the ARCS spectrometer at SNS. Left to right: Tyson, Xing, Dipanshu, Shan, Doug (ARCS instrument scientist), Jen.