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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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Latest News
NRC restores expiration dates for renewed Turkey Point licenses
The Nuclear Regulatory Commission announced this week that it has restored the expiration dates of the Turkey Point nuclear power plant's units 3 and 4 subsequent license renewals (SLR) to July 19, 2052, and April 10, 2053, respectively.
H. Huang, R. B. Stephens, S. A. Eddinger
Fusion Science and Technology | Volume 59 | Number 1 | January 2011 | Pages 39-45
Technical Paper | Nineteenth Target Fabrication Meeting | doi.org/10.13182/FST59-39
Articles are hosted by Taylor and Francis Online.
High image resolution ([approximately]1.3 m/pixel) and precision positioning capability make the Xradia X-ray microscopy an attractive platform on which to study X-ray opacity variations. It can complement precision radiography (PR) as an instrument with much higher spatial resolution. PR measures X-ray transmission intensity variations down to 0.01% at 100-m resolution. Since the requirement to differentiate minute lateral variations in X-ray transmission intensity scales inversely with the spatial resolution, an X-ray imaging microscope such as the Xradia MicroXCT can be useful if it measures the transmission intensity variations to <1%. In normal practice, a number of imaging artifacts limit the intensity measurement to only [approximately]2% precision. Such artifacts include the thermal drift and the illumination uniformity of the X-ray source, as well as thickness variations in the scintillator plate and the beryllium X-ray tube window. The conventional flat-fielding technique is not effective against the dynamic interaction between the beryllium window texture and the moving shadow cast by a moving X-ray spot. We have modified the image processing routine so that the lateral variations in the transmitted intensity can be measured to [approximately]0.3% precision on low-Z samples. This technique can be used to record microstructure variations in beryllium samples. Currently, the beryllium microstructures are characterized by ultrasmall angle X-ray scattering on a synchrotron source, which is not commonly accessible, is expensive, and has a long turnaround time. This Xradia-based method has the potential to make it a routine measurement.