409 Elf Street
Box #3155 DUHS
Durham, NC 27710
Phone: 919-684-2194 Fax: 919-668-2783
Email: radsafety@dm.duke.edu

Yoshizumi, Terry, PhD

Duke Radiation Safety Officer, 
Duke Trustworthy and Reliability Official for U.S. NRC,
Professor (Radiology and Radiation Oncology)
Phone: 919-668-3188
Email: terry.yoshizumi@duke.edu

Wang, Chu, PhD, DABMP, CHP

Assistant Director, Radiation Safety
Phone: 919-668-3187
Email: chu.wang@duke.edu

Crider, Shane, MA

Safety & Health Specialist I
Health Physicist
Phone: 919-668-2315
Email: shane.crider@duke.edu

Egan, Greg

Safety & Health Specialist II
Health Physicist
Phone: 919-668-3158
Email: greg.egan@duke.edu

Gibbs, Brian

Safety Technician
Health Physics Technician
Phone: 919-668-3182
Email: james.gibbs@dm.duke.edu

Gunasingha, Rathnayaka, PhD

Accelerator Program Manager
Faculty, Duke Medical Physics Graduate Program 
Phone: 919-668-3189
Email: rathnayaka.gunasingha@duke.edu

Gutu, Tinashe, MS

Safety & Health Specialist II
Health Physicist
Phone: 919-668-3183
Email: tinashe.gutu@duke.edu

Halliwell, Elijah, MS

Safety & Health Specialist I
Health Physicist
Phone: 919-668-3159
Email: elijah.halliwell@duke.edu

Hyatt, Steven, MS

Safety & Health Specialist II
Health Physicist
Phone: 919-668-3156
Email: steven.hyatt@duke.edu

Mangum, Terry

Safety Technician
Health Physics Technician
Phone: 919-668-3184
Email: terry.mangum@duke.edu

Omenya, Lorna, MS

X-Ray & Laser Safety Program Manager
Health Physicist
Phone: 919-668-3157
Email: lorna.omenya@duke.edu

Reiman, Robert (Bob), MD

Associate Professor(Radiology)
Faculty, Medical Physics Graduate Program
Phone: 919-668-3186
Email: robert.reiman@duke.edu

Smith, Aaron, MS

Safety & Health Specialist II
Health Physicist
Phone: 919-668-3155
Email: aaron.k.smith@duke.edu