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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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Experimenters get access to NSUF facilities for irradiation effects studies
The Department of Energy’s Office of Nuclear Energy announced the recipients of “first call” 2025 Nuclear Science User Facilities (NSUF) Rapid Turnaround Experiment (RTE) awards on June 26. The 23 proposals selected from industry, national laboratories, and universities will receive a total of about $1.4 million. While each project is led by a different principal investigator, some call the same organization home. A total of 17 companies, labs, and universities are represented.
Michael Rieth, Jens Reister, Bernhard Dafferner, Siegfried Baumgärtner
Fusion Science and Technology | Volume 61 | Number 1 | January 2012 | Pages 381-384
Materials | Proceedings of the Fifteenth International Conference on Emerging Nuclear Energy Systems | doi.org/10.13182/FST12-1T3
Articles are hosted by Taylor and Francis Online.
Many divertor design studies for future fusion reactors rely on helium gas cooling. In these concepts, pressurized tubes or channels had to be operated at maximum temperatures between 1000 °C and 1300 °C while the lowest operating temperature is preset by the coolant inlet or by specific start-up and maintenance conditions. At such extreme temperature regimes, the only reduced activation material that would provide enough strength, paired with the necessary heat conductivity, is tungsten. Therefore, various tungsten materials and alloys are often publicized as candidate material for structural divertor applications.However, there are also clear limitations. Therefore, an intensive study on the influence of microstructure and chemical composition on the fracture behavior of industrially produced tungsten materials has been perfomed. This paper reviews the results and some other relevant properties of tungsten materials with respect to possible applications for structural divertor parts. Drawbacks and possible alternatives are discussed.