Dr Sgouros  is a Professor in the Johns Hopkins Medicine Department of Radiology and Radiological Science, Department of Radiation Oncology, and Department of Oncology. He is the founder of the Sgouros Lab, which focuses on modeling and dosimetry of internally administered radionuclides with a particular emphasis on patient-specific dosimetry, alpha-particle dosimetry, and mathematical modeling of radionuclide therapy. Dr. Sgouros serves as the Director of Radiopharmaceutical Dosimetry.