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Division Spotlight
Nuclear Criticality Safety
NCSD provides communication among nuclear criticality safety professionals through the development of standards, the evolution of training methods and materials, the presentation of technical data and procedures, and the creation of specialty publications. In these ways, the division furthers the exchange of technical information on nuclear criticality safety with the ultimate goal of promoting the safe handling of fissionable materials outside reactors.
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!
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Mar 2025
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Nuclear Science and Engineering
May 2025
Nuclear Technology
April 2025
Fusion Science and Technology
Latest News
El Salvador: Looking to nuclear
In 2022, El Salvador’s leadership decided to expand its modest, mostly hydro- and geothermal-based electricity system, which is supported by expensive imported natural gas and diesel generation. They chose to use advanced nuclear reactors, preferably fueled by thorium-based fuels, to power their civilian efforts. The choice of thorium was made to inform the world that the reactor program was for civilian purposes only, and so they chose a fuel that was plentiful, easy to source and work with, and not a proliferation risk.
Technical Session|Methods
Tuesday, April 23, 2024|10:15AM–12:00PM PDT|Continental Ballroom 2
Session Chair:
Joshua Hykes (Studsvik Scandpower)
Alternate Chair:
Sooyoung Choi (Univ. Michigan)
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Comparison of Two Infinite Homogeneous Medium Ultra Fine Group Neutron Slowing-Down Solvers in APOLLO3®
10:15–10:35AM PDT
Terry Levy (CEA), Li Mao (CEA), Richard Sanchez (CEA), Emeline Rosier (CEA), Igor Zmijarevic (CEA), Stéphane Mengelle (CEA), Cédric Jouanne (CEA), Odile Petit (CEA)
Paper
A Collision Probability Formulation of the Resonance Spectrum Expansion (RSE) Self-Shielding Method
10:35–10:55AM PDT
Alain Hebert (Institut de Genie Nucleaire)
A Generalized Differential Equation and Numerical Method for the Standard and Deformed Doppler Broadening Functions
10:55–11:15AM PDT
Willian Vieira de Abreu (Federal Univ. Rio de Janeiro), Adilson Costa da Silva (Federal Univ. Rio de Janeiro), Alessandro da Cruz Gonçalves (Federal Univ. Rio de Janeiro), Aquilino Senra Martinez (Federal Univ. Rio de Janeiro)
Resonance Treatment of Double-Heterogeneous Fuel Using a Deterministic Statistical Geometry Method in Heterogeneous Transport Calculation Code GALAXY-Z
11:15–11:35AM PDT
Kazuya Yamaji (Mitsubishi Heavy Industries), Hiroki Koike (Mitsubishi Heavy Industries), Koji Asano (Mitsubishi Heavy Industries), Satoshi Takeda (Osaka Univ.), Akio Yamamoto (Nagoya Univ.)
Simplified Treatment of Coating Layers in TRISO Fuel in Statistical Geometry Method in Monte Carlo Calculation
11:35–11:55AM PDT
Akio Yamamoto (Nagoya Univ.), Tomohiro Endo (Nagoya Univ.), Satoshi Takeda (Osaka Univ.), Kazuya Yamaji (Mitsubishi Heavy Industries), Hiroki Koike (Mitsubishi Heavy Industries), Koji Asano (Mitsubishi Heavy Industries)
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