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Division Spotlight
Robotics & Remote Systems
The Mission of the Robotics and Remote Systems Division is to promote the development and application of immersive simulation, robotics, and remote systems for hazardous environments for the purpose of reducing hazardous exposure to individuals, reducing environmental hazards and reducing the cost of performing work.
Meeting 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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Latest News
DOE extends Centrus’s HALEU production contract by one year
Centrus Energy has announced that it has secured a contract extension from the Department of Energy to continue—for one year—its ongoing high-assay low-enriched uranium (HALEU) production at the American Centrifuge Plant in Piketon, Ohio, at an annual rate of 900 kilograms of HALEU UF6. According to Centrus, the extension is valued at about $110 million through June 30, 2026.
A. Galati
Nuclear Science and Engineering | Volume 79 | Number 1 | September 1981 | Pages 1-8
Technical Paper | doi.org/10.13182/NSE81-A19037
Articles are hosted by Taylor and Francis Online.
The “spring model” belongs to the class of single bubble models in the sense that it is based on the concept of a vapor bubble bounded by an upper and a lower plane interface across which mass, energy, and momentum are transferred. It is characterized by the hypothesis that the bubble transformations occur under adiabatic conditions. From the numerical point of view, it is very simple and requires a very short computing time. The model and its name were suggested by the analysis of the damped oscillations of the pressure observed during one of the single-pin boiling tests performed on the ENA-2 loop. Pressure, temperatures, and void fractions calculated by the spring model were compared with the experimental ones and very good agreement was observed in this case.