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Division Spotlight
Accelerator Applications
The division was organized to promote the advancement of knowledge of the use of particle accelerator technologies for nuclear and other applications. It focuses on production of neutrons and other particles, utilization of these particles for scientific or industrial purposes, such as the production or destruction of radionuclides significant to energy, medicine, defense or other endeavors, as well as imaging and diagnostics.
Meeting Spotlight
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver 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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Nuclear Science and Engineering
June 2025
Nuclear Technology
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May 2025
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Industry Update—May 2025
Here is a recap of industry happenings from the recent past:
TerraPower’s Natrium reactor advances on several fronts
TerraPower has continued making aggressive progress in several areas for its under-construction Natrium Reactor Demonstration Project since the beginning of the year. Natrium is an advanced 345-MWe reactor that has liquid sodium as a coolant, improved fuel utilization, enhanced safety features, and an integrated energy storage system, allowing for a brief power output boost to 500-MWe if needed for grid resiliency. The company broke ground for its first Natrium plant in 2024 near a retiring coal plant in Kemmerer, Wyo.
Hideki Takano, Kunio Kaneko, Hiroshi Akie, Yukio Ishiguro
Nuclear Technology | Volume 80 | Number 2 | February 1988 | Pages 250-262
Technical Paper | Advanced Light Water Reactor / Fission Reactor | doi.org/10.13182/NT88-A34049
Articles are hosted by Taylor and Francis Online.
The resonance self-shielding effect of fission products on burnup characteristics has been investigated in high conversion light water reactors. Reactivity loss by burnup was considerably reduced by taking account of the self-shielding effects of fission products. The effect caused a difference of ∼0.6% for the multiplication factor at 50 GWd/tonne burnup and it contributed to a negative void reactivity. Furthermore, the mutual shielding effects of resonance overlapping among actinides and fission products have been examined and observed for several fission products. The effect of nuclear data uncertainties of fission products on the burnup reactivity change has been also examined by comparing the results obtained with four evaluated nuclear data files: JENDL-2, JEF-1, ENDF/B-IV, and -V. Fractional absorption rates for individual fission product nuclides were considerably scattered among these files. A significant difference between the reactivity changes calculated with JENDL-2 and ENDF/B-V was observed, while the discrepancy between those obtained with JENDL-2 and JEF-1 was small due to an accidental cancellation.
