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Division Spotlight
Nuclear Criticality Safety
NCSD provides communication among nuclear criticality safety professionals through the development of standards, the evolution of training methods and materials, the presentation of technical data and procedures, and the creation of specialty publications. In these ways, the division furthers the exchange of technical information on nuclear criticality safety with the ultimate goal of promoting the safe handling of fissionable materials outside reactors.
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.
V. Dutto, A. Choux, F. C. Chittaro, É. Busvelle, J.-P. Gauthier
Fusion Science and Technology | Volume 78 | Number 1 | January 2022 | Pages 28-43
Technical Paper | doi.org/10.1080/15361055.2021.1951530
Articles are hosted by Taylor and Francis Online.
This paper presents the development of a radiographic characterization method for microshells. In the Laser MegaJoule (LMJ) framework, microshells are tiny plastic spheres used in inertial fusion laser experiments. For this work, these microshells were characterized using low-energy radiography. In the microshell radiographs, phase contrast was noted at the edges of the microshells. The origin of this phenomenon has been identified as sharp variation of gray-scale amplitude due to refraction. Our theoretical model links pixel information with microshell geometry and is used for contour detection and characterization. Finally, an estimation of surface defects described by spherical harmonics is calculated.