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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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Powering the future: How the DOE is fueling nuclear fuel cycle research and development
As global interest in nuclear energy surges, the United States must remain at the forefront of research and development to ensure national energy security, advance nuclear technologies, and promote international cooperation on safety and nonproliferation. A crucial step in achieving this is analyzing how funding and resources are allocated to better understand how to direct future research and development. The Department of Energy has spearheaded this effort by funding hundreds of research projects across the country through the Nuclear Energy University Program (NEUP). This initiative has empowered dozens of universities to collaborate toward a nuclear-friendly future.
János Gadó, István Vidovszky
Nuclear Science and Engineering | Volume 104 | Number 3 | March 1990 | Pages 217-221
Technical Paper | doi.org/10.13182/NSE90-A23721
Articles are hosted by Taylor and Francis Online.
Changes in the sign of the reactivity coefficient due to changes in the water density are very important in all water-moderated lattices. This sign is determined by the lattice parameters, such as the fuel enrichment and the lattice pitch. It is, of course, negative in undermoderated lattices. However, in special lattices, for example, in spent-fuel storage pools, this reactivity coefficient could be positive, even though one would predict a negative value from the lattice parameters. An example of this effect is presented, and the unexpected sign is explained.
