I am an attending physicist and co-director of our small-animal imaging laboratories and serve as Chairman of its Committee on Radiation. I am also a Special Contributing Faculty Member of the Gerstner Sloan-Kettering Graduate School.

I am actively involved in biomedical research on radionuclide-based methods for detecting and localizing tumor hypoxia (oxygen deprivation), immune effector-cell trafficking, patient-specific dosimetry for radiation therapies, and small-animal and molecular imaging.