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Division Spotlight
Education, Training & Workforce Development
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.
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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Nuclear Science and Engineering
August 2024
Nuclear Technology
Fusion Science and Technology
Latest News
ARPA-E announces $40 million to develop transmutation technologies for UNF
The Department of Energy’s Advanced Research Projects Agency–Energy (ARPA-E) announced $40 million in funding to develop cutting-edge technologies to enable the transmutation of used nuclear fuel into less-radioactive substances. According to ARPA-E, the new initiative addresses one of the agency’s core goals as outlined by Congress: to provide transformative solutions to improve the management, cleanup, and disposal of radioactive waste and spent nuclear fuel.
Donghua Xu, Brian D. Wirth
Fusion Science and Technology | Volume 56 | Number 2 | August 2009 | Pages 1064-1068
Fusion Materials | Eighteenth Topical Meeting on the Technology of Fusion Energy (Part 2) | doi.org/10.13182/FST09-A9052
Articles are hosted by Taylor and Francis Online.
Helium effects are among the most critical subjects in fusion materials research. A major task in the study of He effects is to understand how He interacts with irradiation-induced and/or inherent defects and how the interactions govern the subsequent microstructural evolution. Thermal desorption spectrometry (TDS) provides an appropriate platform for both experimentally probing the kinetics and energetics of He-defect interactions and computationally validating the parameterization of rate theory models. In this paper we present preliminary results on the spatially dependent rate theory modeling of TDS of He-implanted single crystalline iron under the same conditions as explored in our recent experiments. Included in the present model are previously reported migration energies for self-interstitial-atom (SIA), di-SIA and interstitial He from ab initio calculations, and binding energies of HexVy, Vm and In clusters from thermodynamic calculations or ab initio based extrapolations. With a small amount of parameter optimization, several major features observed in the experimental TDS spectra have been reasonably reproduced by the model, while further and more complete validation through both experiments and computation remains to be carried out.