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Division Spotlight
Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
Meeting Spotlight
ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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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Fusion Science and Technology
Latest News
Norway’s Halden reactor takes first step toward decommissioning
The government of Norway has granted the transfer of the Halden research reactor from the Institute for Energy Technology (IFE) to the state agency Norwegian Nuclear Decommissioning (NND). The 25-MWt Halden boiling water reactor operated from 1958 to 2018 and was used in the research of nuclear fuel, reactor internals, plant procedures and monitoring, and human factors.
A. Nikroo, D.A. Steinman
Fusion Science and Technology | Volume 35 | Number 2 | March 1999 | Pages 212-215
Technical Paper | doi.org/10.13182/FST99-A11963925
Articles are hosted by Taylor and Francis Online.
We have successfully sputter coated sub-micron layers of quartz onto plasma polymer shells. An agitation mechanism based on an electromagnetic shaker was used. Coatings as thin as 0.4 μm that retain their integrity have been deposited. These coatings have permeation rates against helium at room temperature that are similar to those of thermal quartz. However, the permeation rates to D2 and argon of coatings thinner than ≈ 2 μm are higher than expected. In contrast, coatings thicker than 2 μm had D2 half-lives that were long enough to make them useful as a permeation barrier. Diffusion along grain boundaries or through pinholes is a likely reason for the high permeation rates through the thinner coatings. Because plasma polymer becomes thermally unstable near 300°C, these composite shells have to be filled at a maximum temperature of 250°C.