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Aerospace Nuclear Science & Technology
Organized to promote the advancement of knowledge in the use of nuclear science and technologies in the aerospace application. Specialized nuclear-based technologies and applications are needed to advance the state-of-the-art in aerospace design, engineering and operations to explore planetary bodies in our solar system and beyond, plus enhance the safety of air travel, especially high speed air travel. Areas of interest will include but are not limited to the creation of nuclear-based power and propulsion systems, multifunctional materials to protect humans and electronic components from atmospheric, space, and nuclear power system radiation, human factor strategies for the safety and reliable operation of nuclear power and propulsion plants by non-specialized personnel and more.
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2024 ANS Annual Conference
June 16–19, 2024
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?
Francesco Premuda
Fusion Science and Technology | Volume 33 | Number 3 | May 1998 | Pages 350-366
Technical Paper | doi.org/10.13182/FST98-A37
Articles are hosted by Taylor and Francis Online.
A theoretical model is proposed in order to explain, via ordinary physics, fundamental aspects of the cold fusion phenomena experimentally observed. These phenomena include unexpected high fusion reaction rates at low temperatures, the paradox of low neutron emission compared to the energy release observed, the cold fusion dependence on critical temperature, neutronic stimulation, and the constitution of nuclei with high electric charge. This theory is based on the hypothesis that a degenerate, cold D12+e- plasma may be created inside lattice defects through a sudden deuteron discharge from a saturated metal lattice. The proposed method is based on the perturbative solution of Vlasov-Poisson kinetic-electric equations. A Fourier transformation of such equations proves that the plasma behaves like an ideal Bose gas of electronically screened deuterons. This approach shows that a high particle density can exist with no pressure increase above the limiting value reached at Bose-Einstein condensation (BEC) and that the electrical repulsion field between positive ions disappears below the critical temperature for BEC. Inside the voids created by defects, the behavior of the cold degenerate plasma below critical temperature suppresses the Coulomb barrier between any pair of ions, in particular those that will fuse. The absence of Coulomb barrier allows one to simply predict fusion reaction rates of the order of those found experimentally and the particle trapping in high-density condensate causing fusion chains. The main reactions involved are D12-T13 and D12-He23. Subsequent fusions of the main reaction products lead to nuclei of greater complexity. A high neutron multiplication factor via deuteron disintegrations is calculated. Neutron bursts, temperature, and pressure excursions are also predicted. Finally, new procedures for inducing such reactions outside metal lattices are suggested.