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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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Lightbridge announces first U-Zr fuel rod samples extruded at INL
Lightbridge Corporation announced today that it has reached “a critical milestone” in the development of its extruded solid fuel technology. Coupon samples using an alloy of zirconium and depleted uranium—not the high-assay low-enriched uranium (HALEU) that Lightbridge plans to use to manufacture its fuel for the commercial market—were extruded at Idaho National Laboratory’s Materials and Fuels Complex.
A. Itakura et al.
Fusion Science and Technology | Volume 47 | Number 1 | January 2005 | Pages 300-302
Technical Paper | Open Magnetic Systems for Plasma Confinement | doi.org/10.13182/FST05-A670
Articles are hosted by Taylor and Francis Online.
Fluctuation of electron density is observed by using a microwave reflectometry in the central cell of GAMMA 10 tandem mirror. An ultrashort-pulse train, whose pulse width is 65 ps, is transmitted into the plasma in the ordinary-wave mode and reflected at the cut-off layer. The reflected wave is detected by the receiving system, and its time-of-flight, i.e., round trip time, is measured. Fluctuation of the time-of-flight is fluctuation of the cutoff layer and it means density fluctuation. The pulse has a broad frequency spectrum, so each frequency component is reflected at different layer corresponding to its frequency. The frequency range of the receiving system is 7 to 11 GHz, and cut-off density ranges 0.61 to 1.5 × 1018 m-3. Density on the central axis of the plasma is about 2 × 1018 m-3. Radial intensity distribution of the fluctuation is observed without any perturbation. Frequency of the fluctuation is around several kHz.