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Meet our Instructors

  • Paul Frame

    Paul W. Frame, Ph.D., CHP

    Paul W. Frame, Ph.D, CHP, is a senior health physicist at ORAU with more than 30 years of teaching and training experience in radiological sciences. He began at ORAU as Team Leader in the Radiological Site Assessment Program, later becoming an instructor for the professional training programs and then manager of the programs and training material. Today, he serves ORAU as a consulting health physicist and the lead curator for the ORAU Health Physics Historical Instrumentation Museum. In 2007, Paul was presented with the R.S. Landauer Memorial Award by the National Health Physics Society for his contributions to the field of radiation research and protection. He holds a Ph.D. in biology from the University of Toronto and an M.S. in Health Physics from the Georgia Institute of Technology.

  • Tonya Bernhardt

    Tonya A. Bernhardt, MS, CHP

    Tonya A. Bernhardt, MS, CHP is a certified health physicist leading ORAU’s professional training programs in her role as operational manager. With more than 18 years of experience training international, federal, state and local professionals in radiation safety, Tonya develops and coordinates courses in all areas of health physics. During her career, she has participated in training development and exercises for the Global Radiation Threat Reduction Project co-managed by the DOE and INTERPOL and has participated in exercises with the Homeland Defense Equipment Reuse Program. Tonya began her career at ORAU as an Applied Health Physics Fellow with the U.S. Department of Energy. She holds an M.S. in Environmental Science and Engineering and a B.S. in Radiological Science, both from the University of North Carolina at Chapel Hill.

  • Ben Estes, MS, CHP

    Ben Estes, MS, CHP

    Ben Estes, MS, CHP has been a health physicist and technical instructor at ORAU for more than a decade. He has extensive experience in field measurement and detection systems, ranging from gamma walkover surveys to in-situ HPGe measurements, and the complete setup, calibration and QC of those systems. During his time at ORAU, Ben has established an HP training lab at the NRC’s Technical Training Center, assembled a small computing cluster for running MCNP simulations, written several VB .NET data logging programs, and has designed and fabricated tools, including the complete design of a single board ratemeter. With a background in coding and programming, Ben has trained himself on an in-house 3D printer for building custom tools and parts for the team’s instruments while training other members of the staff. Ben holds a B.S. and an M.S. in health physics.

  • Glenn Hathaway

    Glenn Hathaway

    Glenn Hathaway has been a health physicist and Professional Training Programs instructor at ORAU for eight years. He is a certified nuclear medicine technologist with more than 30 years of experience in the medical/healthcare field. Before joining ORAU, Glenn served as the program director for the School of Nuclear Medicine at the University of Tennessee Medical Center, Knoxville for 22 years, as well as 10 years as an instructor with the University of Tennessee Graduate School of Medicine-Radiology/Nuclear Medicine Residencies. Throughout his career he has published nine abstracts and journal articles and has been invited to present more than 30 guest lectures. Glenn holds an M.S. in Instructional Technology from the University of Tennessee, Knoxville, and a B.S. in Biology from the University of Delaware.

  • James “Steve” Hutchison

    James “Steve” Hutchison

    Steve Hutchison has been with ORAU for more than eight years. He began his career at ORAU as a health physics technician in 2011 and has since worked his way up to a training and development specialist for ORAU’s Professional Training Programs. As a training and development specialist, Steve maintains and calibrates surveying equipment while assisting with the development of new lab training activities. He is also often tasked to design and fabricate equipment such as source holders, detector bases and various types of jigs. Steve is qualified to perform detector/rate meter repair and calibration as well as to operate the Canberra ISOCS unit with Genie 2000 software. He is also a certified RAD Worker 2, HAZWOPER and Asbestos Inspector for the State of Tennessee. Steve holds an A.A. from Pellissippi State Community College.

  • Nathan Krzyaniak

    Nathan A. Krzyaniak, MS, CHP

    Nathan A. Krzyaniak, MS, CHP joined ORAU after serving the United States Air Force for more than 10 years. During his time in the Air Force, he served as an installation radiation safety officer, radiation health consultant and a survey team lead before his most recent position as a bioenvironmental engineering flight commander at MacDill Air Force Base. While at MacDill, Nathan managed environmental health programs, trained a HAZMAT emergency response team, and implemented OSHA-related occupational health surveillance activities. His health physics expertise includes internal dosimetry, MARSSIM, decommissioning, shielding, emergency response, field surveys, soil sampling, and instrumentation. Nathan holds an M.S. in Radiation Health Physics from Oregon State University and a B.S. in Astronomy and Astrophysics form Michigan State University.

  • Justin Spence, CHP

    Justin Spence, CHP

    Justin Spence is a board-certified health physicist with more than 20 years of experience working with radiation sources and 15 years of professional health physics experience. He has been a health physicist at ORAU since 2011 and is involved with developing ORAU’s professional training programs as well as developing health physics communication material. Justin has shared his expertise on regulatory issues, applied health physics, air sampling, environmental monitoring, health physics statistics, radiation instrumentation, and gamma spectroscopy to help create videos and animations for customers from public and private sectors. His previous experience outside of ORAU includes roles such as a regulator, emergency responder and a public health professional. Justin holds a B.S. in Geology from the University of Nebraska-Lincoln and became a certified health physicist in 2016.

  • Tim Vitkus, MS, CHP

    Tim Vitkus, MS, CHP

    Tim Vitkus is a senior scientist at ORAU with more than 30 years of environmental and radiological assessment and decommissioning-related experience. Before taking on the role as Senior Scientist, he served ORAU as the Associate Director for Health Physics and Survey Operations and as Survey Group Manager. Tim is an expert in the technical and analytical applications of MARSSIM, providing authoritative technical reviews of final status survey plans, designing and implementing MARSSIM-based plans and providing extensive government and private sector MARSSIM training domestically and internationally. He holds an M.S. in Applied and Environmental Microbiology from Georgia State University, a B.S. in Biology from Emory University and an A.A. from Emory University.

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Contact us

For more information about ORAU's Professsional Training Programs, contact:

Registrar
ORAU Professional Training Programs 
P.O. Box 117, MS-11
Oak Ridge, TN 37831-0117
Phone: 865.576.3576
Fax: 865.241.9152
registrar@orau.org