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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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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Latest News
DOE fast tracks test reactor projects: What to know
The Department of Energy today unveiled 10 companies racing to bring test reactors online by next year to meet Trump's deadline of next Independance Day, leveraging a new DOE pathway that allows reactor authorization outside national labs. As first outlined in one of the four executive orders on nuclear energy released by President Trump on May 23 and in the request for applications for the Reactor Pilot Program released June 18, the companies must use their own money and sites—and DOE authorization—to get reactors operating. What they won’t need is a Nuclear Regulatory Commission license.
Richard Sporrer, John M. Christenson
Nuclear Technology | Volume 25 | Number 3 | March 1975 | Pages 440-449
Technical Paper | Reactor | doi.org/10.13182/NT75-A24382
Articles are hosted by Taylor and Francis Online.
Fission-product decay heat rates in shutdown 239Pu-fueled fast reactors are determined by direct calculation using a modified version of the CINDER code with a fission-product library of 344 nuclides. Systematic variations in fluence, flux level, irradiation time, and the initial 238U/239pu ratio are made for the ranges of current interest, and their effects on the decay heat rate for the first ten years after reactor shutdown are investigated. Variations in irradiation history and the 238U/239Pu ratio over the ranges considered cause the total decay heat rate to vary by <18% during the first day after shutdown.
