Reactor and Nuclear Systems Division

Contact Us

If you have questions or comments regarding any of our research and development activities, how to work with ORNL and the Reactor and Nuclear Systems Division (RNSD), or the content of this website please contact one of the following people:

If you have questions regarding RNSD technologies and capabilities, job opportunities, working with ORNL and the RNSD, intellectual property, etc., contact,

Division Contacts

John Wagner Director 865-241-3570
Sandra Poarch Division Secretary 865-574-5267
  Division Facsimile 865-576-5114

Advanced Reactor Systems & Safety Group

Gary Mays Group Leader 865-574-0394
Anita Benn Administrative Assistant 865-574-0377
Research Staff    

Nuclear Data and Criticality Safety Group

Mike Dunn Group Leader 865-574-5260
Catie McCall Administrative Assistant 865-574-1087
Research Staff    

Nuclear Security Modeling Group

Vince Jodoin Group Leader 865-574-0715
Angie Alford Administrative Assistant 865-576-8805
Research Staff    

Radiation Safety Information Computational Center

Tim Valentine Group Leader  
Angie Alford Administrative Assistant 865-576-8805
Research Staff    

Radiation Transport Group

Bob Grove Group Leader 865-574-4646
Catie McCall Administrative Assistant 865-574-1087
Research Staff    

Reactor Physics Group

Steve Bowman Group Leader 865-574-5263
Angie Alford Administrative Assistant 865-576-8805
Research Staff    

Thermal Hydraulics and Irradiation Engineering Group

Grady Yoder Group Leader 865-574-5282
Charlene Patrick Administrative Assistant 865-576-2541
Research Staff    

Used Fuel Systems

John Wagner Group Leader (interim) 865-241-3570
Katherine Ragle Administrative Assistant 865-574-5288
Research Staff