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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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International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver Downtown
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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Latest News
Argonne’s METL gears up to test more sodium fast reactor components
Argonne National Laboratory has successfully swapped out an aging cold trap in the sodium test loop called METL (Mechanisms Engineering Test Loop), the Department of Energy announced April 23. The upgrade is the first of its kind in the United States in more than 30 years, according to the DOE, and will help test components and operations for the sodium-cooled fast reactors being developed now.
A. Honig, Q. Fan, C.-K. Hsu, X. Wei
Fusion Science and Technology | Volume 28 | Number 5 | December 1995 | Pages 1859-1864
Technical Paper | Inertial Confinement Fusion Targets | doi.org/10.13182/FST95-A30426
Articles are hosted by Taylor and Francis Online.
The emissivities and accommodation coefficients for helium and deuterium gas were measured for polystyrene target shells from several production batches. The shells varied in wall thickness, diameter and surface conditions as viewed with an optical microscope. For emissivity measurements, it is desirable for the radiative heat transfer to dominate over conductive heat transfer via the surrounding gas and the sample (and thermometer) mount. This is achieved by maintaining very low gas pressure (free molecular conduction regime) and by a novel contact-less thermometric measurement, in which the temperature of the shell is determined from the strongly temperature-dependent shell outgassing rate. The accommodation coefficient is also obtained in the process. Emissivity and accommodation coefficient results are reported in the temperature range 250 – 350K. The values are very low, in the 0.01 range for the former, and 0.003 range for the latter, which augurs well for thermal stability after the shroud removal prior to a target shot. For measurements at lower temperatures (down to 4K), other contact-less thermometry methods are proposed, with electronic magnetic susceptibility shown to be very favorable.