His interests are mainly in developing detectors for nuclear and particle physics and medical imaging. In the early 1980’s, he worked on building detectors and doing experiments at CERN, including R807 at the ISR and the Helios experiment at the SPS. He later returned to work on high energy and nuclear physics experiments at BNL where he worked on experiments at the AGS, including the Rare Kaon Decay Experiment E787 and Heavy Ion Experiments E814/E877, and was spokesperson for experiment E855. Starting in the 1990’s, he worked on the PHENIX experiment at RHIC where he helped to build the electromagnetic calorimeter and the Hadron Blind Detector. He then started working on the sPHENIX experiment where he was the project leader for building its new electromagnetic calorimeter, and is currently involved in developing new detectors for the Electron Ion Collider at BNL. He has also developed new detectors for medical imaging, including an awake animal PET detector (the RatCAP), and is currently involved in developing new detectors for Time of Flight PET.