Janet Reddin is an ABSNM-certified physicist in Nuclear Physics and Instrumentation who has been a Senior Research Investigator in the University of Pennsylvania’s Radiology Department for more than 25 years. Janet spent 4 years in the U.S. Air Force as an Airframe Structural Repair Specialist before earning BS degrees in Physics and in Geophysics from the University of Utah. She graduated from the University of Arizona with a Ph.D in Optical Sciences then spent two years as a physicist in the Nuclear Medicine Department of NIH’s Clinical Center before moving to the University of Pennsylvania. For nearly 20 years she also has served as a PET Core Lab Physicist for ECOG/ACRIN, where she has qualified more than 100 PET/CT scanners for participation in qualitative PET research trials. She is currently Vice President of the American Board of Science in Nuclear Medicine. In her spare time, she enjoys singing in two choirs and doing historical research.