Over the last four decades Ren-Yuan Zhu and his colleagues have been involved in the development of inorganic scintillators for
precision crystal electromagnetic calorimeters in high energy physics, such as the L3 BGO, BaBar CsI(Tl), CMS PWO and Mu2e CsI. He received several Advanced Detector Research awards and Collider Detector Research and Development awards from the DOE Science Office for developing PWO, LSO/LYSO and cost-effective crystals for future HEP experiments. Starting 2009, Ren-Yuan has been leading this Advanced Detectosr Research and Development task in the Caltech HEP program. His goal is to develop novel inorganic scintillators for novel detector concepts, such as a fast and radiation hard calorimeter concept, an ultrafast calorimeter concept and a cost-effective homogeneous hadronic calorimeter concept. His current interest is LYSO:Ce crystals and LuAG:Ce ceramics featured with excellent radiation hardness, yttrium doped-barium fluoride crystals and LuO:Yb ceramics featured with ultrafast decay time and suppressed slow scintillation and cost-effective scintillating glass . This effort is supported by the U.S. Department of Energy, Office of High Energy Physics program under Award Number DE-SC0011925.
