ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
Operations & Power
Members focus on the dissemination of knowledge and information in the area of power reactors with particular application to the production of electric power and process heat. The division sponsors meetings on the coverage of applied nuclear science and engineering as related to power plants, non-power reactors, and other nuclear facilities. It encourages and assists with the dissemination of knowledge pertinent to the safe and efficient operation of nuclear facilities through professional staff development, information exchange, and supporting the generation of viable solutions to current issues.
Meeting Spotlight
Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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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Jul 2024
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Nuclear Science and Engineering
August 2024
Nuclear Technology
Fusion Science and Technology
Latest News
BWXT will scout potential TRISO fuel production sites in Wyoming
BWX Technologies Inc. announced today that its Advanced Technologies subsidiary has signed a cooperation agreement with the state of Wyoming to evaluate locations and requirements for siting a potential new TRISO nuclear fuel fabrication facility in the state.
W. O. Harms, A. P. Litman
Nuclear Technology | Volume 5 | Number 3 | September 1968 | Pages 156-172
Technical Paper and Note | doi.org/10.13182/NT68-A28045
Articles are hosted by Taylor and Francis Online.
The alkali metals lithium, potassium, and cesium are of principal interest as heat transfer and working fluids in high-performance space-nuclear reactors employing single- and multiloop Rankine cycle conversion. The compatibility of these alkali metals with structural alloys has been investigated for more than a decade in both laboratory- and engineering-scale tests. It is demonstrated that reliable engineering systems involving potassium and cesium can be constructed and operated at 2000°F with first-generation niobium-base alloys like Nb-1% Zr and at 2200°F with advanced niobium-base alloys. Niobium-base alloys can be used at higher temperatures in lithium systems. Tantalum-base alloys appear to be satisfactory for potassium or cesium to at least 2200°F and probably a few hundred degrees higher with lithium. Very advanced systems designed for temperatures of 2500°F and higher probably will require a new group of alloys; tungsten-base alloys appear to be strong candidates for these applications.