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Devoted to all aspects of the nuclear fuel cycle including waste management, worldwide. Division specific areas of interest and involvement include uranium conversion and enrichment; fuel fabrication, management (in-core and ex-core) and recycle; transportation; safeguards; high-level, low-level and mixed waste management and disposal; public policy and program management; decontamination and decommissioning environmental restoration; and excess weapons materials disposition.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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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?
Patrick O’Rourke, Scott Ramsey, Brian Temple
Nuclear Science and Engineering | Volume 196 | Number 7 | July 2022 | Pages 792-810
Technical Paper | doi.org/10.1080/00295639.2021.2018926
Articles are hosted by Taylor and Francis Online.
This work applies the Lie Group Theory (LGT) to the neutron slowing-down equations for the n’th lethargy interval with the goal of defining the symmetry group associated with Dawn’s analytical solution. We also demonstrate two competing methods of the LGT and how they each result in the same solution and symmetry group. The two methods differ by taking advantage of the definition of a symmetry group from either a geometrical perspective or an algebraic perspective. The methods are the Traditional Lie Algorithm, which we apply to the equivalent system of ordinary differential equations for neutrons slowing down, as well as the Grigoriev-Meleshko Method, which we apply directly to the Volterra integral equation for neutrons slowing down. We also discuss the physical meaning of the symmetry group related to Dawn’s solution.