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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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!
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Nuclear Science and Engineering
September 2025
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August 2025
Fusion Science and Technology
Latest News
The RAIN scale: A good intention that falls short
Radiation protection specialists agree that clear communication of radiation risks remains a vexing challenge that cannot be solved solely by finding new ways to convey technical information.
Earlier this year, an article in Nuclear News described a new radiation risk communication tool, known as the Radiation Index, or, RAIN (“Let it RAIN: A new approach to radiation communication,” NN, Jan. 2025, p. 36). The authors of the article created the RAIN scale to improve radiation risk communication to the general public who are not well-versed in important aspects of radiation exposures, including radiation dose quantities, units, and values; associated health consequences; and the benefits derived from radiation exposures.
Technical Session|Deterministic Transport Methods and Applications
Monday, April 28, 2025|3:15–4:55PM MDT|Lawrence A
Session Chair:
Jae Chang (LANL)
Alternate Chair:
Mathew Cleveland (LANL)
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A Hybrid SN-Diffusion Method for Molten Salt Reactor Control Rod Modeling
3:15–3:40PM MDT
Sun Myung Park (Univ. Illinois, Urbana-Champaign), Kathryn D. Huff (Univ. Illinois, Urbana-Champaign), Madicken Munk (Univ. Illinois, Urbana-Champaign)
Paper
Response Matrix Equivalence Method Based on Relaxed Flux Continuity Equation and its Application to Reflector Homogenization for Diffusion Calculations
3:40–4:05PM MDT
Sami Machach (Polytechnique Montréal), Alain Hebert (Polytechnique Montreal)
High-Accuracy Critical Radii Analytic Expressions for Spherical Reflected Systems Based on Discontinuous Asymptotic Diffusion Theory
4:05–4:30PM MDT
Shay I. Heizler (Hebrew Univ.)
Adaptive Mesh Refinement of the Domain Decomposition+𝐿2-Jumps Method Applied to the Neutron Diffusion Equation on 3D Structured Meshes
4:30–4:55PM MDT
Mario Gervais (CEA), François Madiot (CEA), Minh-Hieu Do (CEA), Patrick Ciarlet (ENSTA)
Presentation Slides (Visible to Attendees)
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