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Isotopes & Radiation
Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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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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Kentucky legislature sends nuclear bills to governor
Kentucky’s Republican-majority legislature passed a bill this past week that could bring nuclear energy to the “coal-is-king” state as lawmakers broadly seek solutions to reduce carbon emissions. The bill went to Democratic Gov. Andrew Beshear on Monday for final approval.
Carmen García-Rosales, Sigrid Deschka, Wolfgang Hohenauer, Reiner Duwe, Eric Gauthier, Jochen Linke, Martin Lochter, Werner K. W. M. Malléner, Laurenz Plöchl, Peter Rödhammer, Armando Salito, Asdex-Upgrade Team
Fusion Science and Technology | Volume 32 | Number 2 | September 1997 | Pages 263-276
Technical Paper | First Wall Technology | doi.org/10.13182/FST97-A19896
Articles are hosted by Taylor and Francis Online.
Tiles of fine-grain graphite coated with tungsten layers by different plasma spray techniques (thickness 100 to 550 µm) and by physical vapor deposition (PVD) (thickness 20 to 100 µm) were subjected to heat fluxes, as expected for the divert or of the Axially Symmetric Divertor Experiment (ASDEX)-Upgrade tokamak. By a stepwise increase of the applied heat flux up to 16 MW/m2 and different pulse durations (1 to 5 s), the maximum load for disabling damage of the coating was determined. The fatigue behavior of the coatings was investigated by cyclic loading. The results show that plasma spray coatings are able to withstand heat loads up to 15 MW/m2 for a 2-s pulse without structural changes and cyclic loading with 1000 cycles at 10 MW/m2 and a 2-s pulse. The PVD coatings show damage by crack formation and melting at slightly lower heat loads than most of the plasma spray coatings. Under cyclic loading, the thin PVD coatings fail by extensive crack formation. The results of the tests indicate that the good performance of the plasma spray coatings is related to their higher porosity, which provides a crack-arresting mechanism, and to their mechanical strength.