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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
Conference on Nuclear Training and Education: A Biennial International Forum (CONTE 2025)
February 3–6, 2025
Amelia Island, FL|Omni Amelia Island Resort
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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February 2025
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Latest News
Reboot: Nuclear needs a success . . . anywhere
The media have gleefully resurrected the language of a past nuclear renaissance. Beyond the hype and PR, many people in the nuclear community are taking a more measured view of conditions that could lead to new construction: data center demand, the proliferation of new reactor designs and start-ups, and the sudden ascendance of nuclear energy as the power source everyone wants—or wants to talk about.
Once built, large nuclear reactors can provide clean power for at least 80 years—outlasting 10 to 20 presidential administrations. Smaller reactors can provide heat and power outputs tailored to an end user’s needs. With all the new attention, are we any closer to getting past persistent supply chain and workforce issues and building these new plants? And what will the election of Donald Trump to a second term as president mean for nuclear?
As usual, there are more questions than answers, and most come down to money. Several developers are engaging with the Nuclear Regulatory Commission or have already applied for a license, certification, or permit. But designs without paying customers won’t get built. So where are the customers, and what will it take for them to commit?
Paul C. S. Wu
Nuclear Technology | Volume 39 | Number 1 | June 1978 | Pages 84-94
Nuclear Safety Analysis | Energy Modeling and Forecasting / Material | doi.org/10.13182/NT78-A17010
Articles are hosted by Taylor and Francis Online.
The physical and nuclear properties of EU2O3 were reviewed, evaluated, and compared with those of the other potential control materials for breeder reactors. Europia with a 90% theoretical density has approximately the same amount of europium atoms per unit volume as the pure metal. Consequently, the reactivity worth per unit volume of Eu2O3 is similar to that of pure metal. In addition, the reactivity of EU2O3 is superior to tantalum and is comparable to natural B4C. The decay heat of Eu2O3 is much lower than that of tantalum over the range of decay times that is of interest with respect to handling. Irradiation-induced swelling of EU2O3 is lower than that of B4C, and postirradiation examination revealed only ∼1% dimensional changes in the thermal- and/or fast-neutron spectrum (8 × 1025 n/m2). Although surface reaction between EU2O3 and the fast test reactor reference cladding Type 316 stainless steel leads to the formation of a europium silicate, it is expected that Eu2O3 would be compatible with low-silicon Type 316 stainless steel. In addition, the Eu2O3-sodium system was also shown to be compatible under simulated liquid-metal fast breeder reactor conditions without significant change. Consequently, Eu2O3 is an excellent alternate candidate compared to B4C as the neutron absorber for fast breeder reactors.
