ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
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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.
Meeting Spotlight
Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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
Virginia utility considers SMRs
Dominion Energy Virginia has issued a request for proposals from leading nuclear companies to study the feasibility of putting a small modular reactor at its North Anna nuclear power plant.
While the utility says it is not a commitment to build an SMR at the site, the RFP is “an important first step in evaluating the technology and the North Anna site to support Dominion Energy customers’ future energy needs consistent with the company’s most recent Integrated Resource Plan.”
Samim Anghaie, Larry L. Humphries, Nils J. Diaz
Nuclear Technology | Volume 91 | Number 3 | September 1990 | Pages 376-387
Technical Paper | Material | doi.org/10.13182/NT90-A34458
Articles are hosted by Taylor and Francis Online.
The differential gamma scattering spectroscopy technique is a novel means of nondestructive testing using Compton scattering to determine local density perturbations in a test sample. A narrow collimated beam of gamma rays irradiates a test sample, and the scattered radiation field is detected in a transversely placed high-purity germanium detector. This detector provides excellent energy resolution so that a detailed energy spectrum can be obtained. This spectrum is then subtracted from a reference spectrum that was collected from a well-known, unflawed sample to obtain the differential spectrum. This differential spectrum contains information characterizing the flaw. Using the relationship between scattering angle and scattering energy that characterizes Compton scattering, the single-scattered spectrum can be used to determine the location of scattering and, consequently, the density distribution along the portion of the primary beam path that passes through the sample. An attractive feature of this technique that distinguishes it from other Compton scattering techniques is the ability to detect flaws both on and off the primary beam path. A series of experiments was conducted to assess the sensitivity of the detection system for different sizes and shapes of flaws located throughout the sample. The results of these experiments are analyzed.