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The Education, Training & Workforce Development Division provides communication among the academic, industrial, and governmental communities through the exchange of views and information on matters related to education, training and workforce development in nuclear and radiological science, engineering, and technology. Industry leaders, education and training professionals, and interested students work together through Society-sponsored meetings and publications, to enrich their professional development, to educate the general public, and to advance nuclear and radiological science and engineering.
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International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver Downtown
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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
Argonne’s METL gears up to test more sodium fast reactor components
Argonne National Laboratory has successfully swapped out an aging cold trap in the sodium test loop called METL (Mechanisms Engineering Test Loop), the Department of Energy announced April 23. The upgrade is the first of its kind in the United States in more than 30 years, according to the DOE, and will help test components and operations for the sodium-cooled fast reactors being developed now.
W. Brian Clarke, Brian M. Oliver, Michael C. H. McKubre, Francis L. Tanzella, Paolo Tripodi
Fusion Science and Technology | Volume 40 | Number 2 | September 2001 | Pages 152-167
Technical Paper | doi.org/10.13182/FST01-A190
Articles are hosted by Taylor and Francis Online.
Measurements have been made of 3He, 4He, and 3H in a sample containing 2.7% of the gas from the interior of an Arata-style hollow palladium electrode charged with ~5 g Pd-black that had undergone electrolysis in D2O as a cathode for 90 days and then as an anode for a further 83 days. There is no evidence for the much larger amounts of 4He observed by Arata and Zhang in similar experiments. However, a very large concentration has been found of 3He, 2.3 ± 0.5 × 1012 atoms/cm3 standard temperature and pressure that apparently can all be attributed to the decay of tritium produced during electrolysis. No direct production of 3He can be specified, a result that is also different from the conclusions of Arata and Zhang. The 3He and tritium measurements and the results of a gas analysis using a Finnigan-type mass spectrometer show that at the end of the anodic electrolysis, the electrode void contained 5.8 ± 0.7 × 1013 atoms tritium in the gas phase as HT, DT, and T2, and 1.7 ± 0.3 × 1015 atoms tritium in the aqueous phase as HTO, DTO, and T2O. At this stage, the gas phase pressure was ~18.8 atm in a free volume of 0.6 cm3, and the total mass of water was ~5.7 mg. The gas phase tritium value is viewed as a lower limit for gaseous tritium produced inside the electrode because some of that tritium must have been removed into the D2O electrolyte during the anodic episode.The 3He and 4He measurements were also made in the two samples of the Pd-black and in sections cut from the walls of both Pd electrodes. The H2O electrolyzed samples did not show any evidence of unusually high 3He and/or 4He, but all the D2O electrolyzed samples showed clear evidence of 3He from tritium decay. A stepwise temperature heating experiment performed with a 24.9-mg sample of the D2O Pd-black showed that the diffusion process for 3He can be described by an equation of the form D = D0 exp(-U/kT) with an activation energy U of 1.1 eV. It is also apparent that the 3He from tritium is quantitatively retained in the Pd-black at room temperature.