ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Explore membership for yourself or for your organization.
Conference Spotlight
2026 Nuclear Energy Conference & Expo (NECX)
August 24–27, 2026
Dallas, TX|Hilton Anatole
Latest Magazine Issues
Jul 2026
Jan 2026
2026
Latest Journal Issues
Nuclear Science and Engineering
August 2026
Nuclear Technology
Fusion Science and Technology
Latest News
Seven projects selected for DARPA’s Rads to Watts
The Defense Advanced Research Projects Agency (DARPA) has selected seven teams for its Rads to Watts program, setting off a competition to design radiovoltaic cells capable of providing power in extreme environments such as deep sea and space.
The teams are now working on developing a unit cell, simple demonstrations that their design ideas work. These are expected to be low power but capable of being scaled up into a higher-power array.
Advanced Reactor Safety (ARS) SPeaker
Dennis is a Consulting Engineer in GE Hitachi (GEH) Nuclear Energy, with over 42 years of Risk and Safety Analysis experience and 18 years at GEH. He technically oversees the PRAs for the BWRX-300, Versatile Test Reactor (VTR), and Natrium Reactors, and was the Technical Lead for the UK ABWR and PRISM PRAs. Prior to working for GEH, Dennis worked for 10 years as a nuclear utility PRA Engineer (Duke and San Onofre) and 14 years as a contractor/consultant. Dennis has authored or co-authored more than 150 publications, including the recently issued IAEA Safety Report 96 on Multi-unit PRA, and is currently supporting the development of an IAEA TECDOC on Multi-Hazard Assessments.
Dennis is being inducted into 2024 class of the National Academy of Engineering. Dennis is the ANS-Chairman of the ANS/ASME Joint Committee on Nuclear Risk Management (JCNRM), is a member of the ANS Standards Board, and has supported PRA standard development since 1999. Dennis was awarded the ANS Theos “Tommy” Thompson award for outstanding contributions to the field of nuclear reactor safety, October 2020, and is an ANS Fellow. Dennis received his MS and BS in Nuclear Engineering from University of Florida.
Last modified April 2, 2024, 6:03am PDT
