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The mission of the Decommissioning and Environmental Sciences (DES) Division is to promote the development and use of those skills and technologies associated with the use of nuclear energy and the optimal management and stewardship of the environment, sustainable development, decommissioning, remediation, reutilization, and long-term surveillance and maintenance of nuclear-related installations, and sites. The target audience for this effort is the membership of the Division, the Society, and the public at large.
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2024 ANS Annual Conference
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Las Vegas, NV|Mandalay Bay Resort and Casino
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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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Can hydrogen be the transportation fuel in an otherwise nuclear economy?
Let’s face it: The global economy should be powered primarily by nuclear power. And it probably will by the end of this century, with a still-significant assist from renewables and hydro. Once nuclear systems are dominant, the costs come down to where gas is now; and when carbon emissions are reduced to a small portion of their present state, it will become obvious that most other sources are only good in niche settings. I mean, why use small modular reactors to load-follow when they can just produce that power instead of buffering it?
O. Stein, Y. Liu, J. Streit, J. H. Campbell, Y. F. Lu, Y. Aglitskiy, N. Petta
Fusion Science and Technology | Volume 73 | Number 2 | March 2018 | Pages 153-165
Technical Paper | doi.org/10.1080/15361055.2017.1406237
Articles are hosted by Taylor and Francis Online.
Low-density foam targets were fabricated by direct laser writing using two-photon polymerization (2PP). The targets were used in high-energy-density shock-propagation experiments carried out on the NIKE laser system at the Naval Research Laboratory (NRL). The basic target comprised a rectilinear foam rod with a log-pile-like microstructure with overall dimensions of 2000 × 250 × 315 μm3 and a nominal density of ~100 mg/cm3. The foam block is topped with a 15-μm-thick, full-density ablation layer that is integrated into the 2PP printing process. The main challenge in fabricating the foam targets comes in maintaining dimensional and structural stability during 2PP postprocessing particularly during development, drying, and release from the substrate. Twelve 2PP foam rods were characterized and then built into targets. The characterization data show shrinkage of ~5% to 15% in overall dimensions attributed mainly to shrinkage of the acrylic resin (IP-Dip). Continuing development shows that use of the more stable IP-S commercial resin leads to significantly improved foam structure stability, reduced shrinkage, and a lower number of inherently weak stitching boundaries. The 12 targets provided to NRL have been shot; an example of the type of data obtained is presented.