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Division Spotlight
Reactor Physics
The division's objectives are to promote the advancement of knowledge and understanding of the fundamental physical phenomena characterizing nuclear reactors and other nuclear systems. The division encourages research and disseminates information through meetings and publications. Areas of technical interest include nuclear data, particle interactions and transport, reactor and nuclear systems analysis, methods, design, validation and operating experience and standards. The Wigner Award heads the awards program.
Meeting Spotlight
ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
Latest Magazine Issues
Mar 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
April 2025
Nuclear Technology
Fusion Science and Technology
Latest News
State legislation: Illinois bill aims to lift state’s remaining nuclear moratorium
A bill that would fully repeal the state’s entire moratorium on new nuclear projects survived a key deadline in the Illinois General Assembly last week.
To stay afloat in the spring legislative session, bills needed to be assigned to committee by March 21, and state Sen. Sue Rezin’s Senate Bill 1527 now sits with the Senate’s Energy and Public Utilities committee for review.
Technical Session
Wednesday, May 11, 2022|1:30–3:30PM EDT|Calypso
Session Chair:
Lee S. Mason (NASA)
Session Organizer:
Alternate Chairs:
Michael B. Smith (ORNL)
Mike Houts (NASA)
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Fusion Propulsion in 2022: Where We Are and Where We Are Going
Stephen Samples (Aerospace Corp.)
Paper
Ideas for Infusing OSAM into Nuclear Electric Propulsion Architectures
Julia Cline (NASA Langley Research Center), John Dorsey (NASA Langley Research Center), David Kang (NASA Langley Research Center), Bill Doggett (NASA Langley Research Center), Danette Allen (NASA Langley Research Center)
Mission Assurance for a Nuclear Thermal Propulsion First Flight Vehicle
Sophonias Teshome (Aerospace Corp.), Roland Duphily (Aerospace Corp.), Norman Lao (Aerospace Corp.)
Presented by Randy Bell (Aerospace Corp.)
Space Environment Neutron Production in Space Nuclear Reactors
W. Randy Bell (Aerospace Corp.), T. Paul O'Brien (Aerospace Corp.), Mark Looper (Aerospace Corp.), Eric Davis (Aerospace Corp.)
Aerogel Supported Fission Fragment Rocket Engine Core
Ryan Weed (Positron Dynamics), Matthew Horsley (LLNL), George Chapline (LLNL)
Material and Modal Analysis of the Rotating Cylinders and Turbine Blades of NASA's Centrifugal Nuclear Thermal Rocket
Tristan Carter (NASA Marshall Space Flight Center), Manav Dave (UAH Propulsion Research Center)
Application of Improved Heat Exchanger Geometry to Nuclear Thermal Rocket Engines
Spencer Christian (Ohio State), Casey Ruckman (Ohio State), Jacob Stonehill (Ohio State), Preston Williams Jr. (Ohio State), Caleb Whitacre (Ohio State), John M. Horack (Ohio State)
Non-Uniform Heating Impact on Specific Impulse in Nuclear Thermal Propulsion Engines
Spencer Christian (Ohio State), John M. Horack (Ohio State)
Coverage to Launch: Updating Nuclear Liability Laws to Empower Development of Space Technologies
Sid Fowler (Pillsbury Winthrop Shaw Pittman), Jeffrey S. Merrifield (Pillsbury Winthrop Shaw Pittman), Vince C. Zabielski (Pillsbury Winthrop Shaw Pittman)
Development of a Nuclear Thermal Rocket I&C Testbed
Brandon Wilson (ORNL), Hayden Sutton (Univ. Tennessee, Knoxville), Bart Murphy (ORNL), N. Dianne Bull Ezell (ORNL)
An Extremely High Isp Spacecraft Propulsion System
Lawrence Forsley (Global Energy Corp.), Theresa Benyo (NASA Glenn Research Center), Pamela Mosier-Boss (Global Energy Corp.), Leonard Dudzinski (NASA Headquarters)
Anti-Criticality Assessments for the Government Testing Reference NTP Design
Mike Savela (BWXT Advanced Technologies), Daniel Newell (BWXT Advanced Technologies), Patrick Hunt (BWXT Advanced Technologies), Randall Paliga (BWXT Advanced Technologies), Matthew Ales (BWXT Advanced Technologies), Shane Stimpson (BWXT Advanced Technologies)
Alpha Particle Propulsion for Overtaking Voyger-1 in 40 years
Naoyuki Takaki (Tokyo City Univ.), Hiroki Yaguchi (Tokyo City Univ.), Yuki Sakurai (Tokyo City Univ.), Keigo Hasegawa (Tokyo City Univ.)
Abeona: Nuclear-Electric Propulsion Vehicle for Missions to Neptune and Outer Planets
Geoffrey A. Landis (NASA Glenn Research Center), Steven R. Oleson (NASA Glenn Research Center)
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