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Division Spotlight
Mathematics & Computation
Division members promote the advancement of mathematical and computational methods for solving problems arising in all disciplines encompassed by the Society. They place particular emphasis on numerical techniques for efficient computer applications to aid in the dissemination, integration, and proper use of computer codes, including preparation of computational benchmark and development of standards for computing practices, and to encourage the development on new computer codes and broaden their use.
Meeting Spotlight
2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott Downtown
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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July 2025
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Latest News
Smarter waste strategies: Helping deliver on the promise of advanced nuclear
At COP28, held in Dubai in 2023, a clear consensus emerged: Nuclear energy must be a cornerstone of the global clean energy transition. With electricity demand projected to soar as we decarbonize not just power but also industry, transport, and heat, the case for new nuclear is compelling. More than 20 countries committed to tripling global nuclear capacity by 2050. In the United States alone, the Department of Energy forecasts that the country’s current nuclear capacity could more than triple, adding 200 GW of new nuclear to the existing 95 GW by mid-century.
Felix Pino, Jessica C. Delgado, Matteo Polo, Erica Fanchini, Anna Selva, Joana Minga, Gianmarco Torilla, Lodovico Ratti, Sandra Moretto
Nuclear Technology | Volume 210 | Number 10 | October 2024 | Pages 1975-1984
Research Article | doi.org/10.1080/00295450.2024.2304993
Articles are hosted by Taylor and Francis Online.
This paper describes the characterization of a fast neutron facility located at Legnaro National Laboratories’ Van de Graaff CN accelerator. The neutron flux is produced by the Be() reactions, generated by a beryllium thick target bombarded with 5-MeV protons. An iterative unfolding algorithm combined with a pulse shape discrimination technique were used to obtain the energy distributions of the emitted neutrons at different angles and to compute the absolute neutron flux as a function of the proton current. With a proton current of 180 nA and a distance of 5 cm from the emission point, a maximum neutron flux of 2.6 10 cm−2 s−1 (15%) was obtained.
The gamma-ray component made up around 32% of the total radiation field. The measurements were taken with a Stilbene scintillation detector, therefore a comprehensive study of the detector was also performed, including energy calibration, determination of the proton light output function, and intrinsic neutron detection efficiency. Based on the results and the capabilities of the Stilbene detector, it can be concluded that this detector is suitable for fast neutron flux characterization. It enables quick measurements and real-time monitoring of the neutron field.
