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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 Winter Conference and Expo
November 17–21, 2024
Orlando, FL|Renaissance Orlando at SeaWorld
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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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New laws offer nuclear industry incentives for existing power plant uprates
This year, the U.S. nuclear industry received a much-needed economic boost that could help preserve operating nuclear power plants and incentivize upgrades that extend their lifespan and power output.
Signed into law in 2022, the Inflation Reduction Act offers production tax credits (PTCs) for existing nuclear power plants and either PTCs or investment tax credits (ITCs) for new carbon-free generation. These credits could make power uprates—increasing the maximum power level at which a commercial plant may operate—a much more appealing option for utilities.
V. V. Verbinski, C. Cassapakis, R. L. Pease, H. L. Scott
Nuclear Science and Engineering | Volume 70 | Number 1 | April 1979 | Pages 66-72
Technical Paper | doi.org/10.13182/NSE79-A18928
Articles are hosted by Taylor and Francis Online.
The validity of the silicon displacement cross section, D(E), was investigated by simultaneous measurements of neutron spectra (E) and of the accumulated damage D = K induced in 2N2222A transistors. The measured values of (E) were folded in with D(E) to obtain eq, the 1-MeV equivalent fluence for damage to silicon, and the ratios D/eq = K/eq ≡ K were obtained for diverse shapes of (E) to determine the stability of K to (E) variations. The value of K was seen to be constant (within 4 to 5%, 1σ) within roughly the same standard deviation as the D = K measurements for two modified reactor spectra that varied by as much as 1000% above a few MeV when normalized at the 0.2-MeV “threshold” of D(E). This helps substantiate the validity of D(E) in characterizing diverse neutron fields for radiation damage of a practical silicon transistor. Earlier studies with large-volume silicon diodes, for monoenergetic neutrons of 0.7 to 14 MeV, tend to corroborate the D(E) validity for transistors over this energy range. These results attest to the accuracy of the shape in terms of gross structure of D(E), which is governed by the accuracy of the ENDF/B-IV neutron cross-section evaluation used and of the Robinson functional representation of the Lindhard factor for determining the fraction of recoil-atom and charged particle kinetic energy that is available to cause displacements.