ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
Accelerator Applications
The division was organized to promote the advancement of knowledge of the use of particle accelerator technologies for nuclear and other applications. It focuses on production of neutrons and other particles, utilization of these particles for scientific or industrial purposes, such as the production or destruction of radionuclides significant to energy, medicine, defense or other endeavors, as well as imaging and diagnostics.
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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Jul 2024
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Nuclear Science and Engineering
August 2024
Nuclear Technology
Fusion Science and Technology
Latest News
ARPA-E announces $40 million to develop transmutation technologies for UNF
The Department of Energy’s Advanced Research Projects Agency–Energy (ARPA-E) announced $40 million in funding to develop cutting-edge technologies to enable the transmutation of used nuclear fuel into less-radioactive substances. According to ARPA-E, the new initiative addresses one of the agency’s core goals as outlined by Congress: to provide transformative solutions to improve the management, cleanup, and disposal of radioactive waste and spent nuclear fuel.
Jason A. Hearne, Pavel V. Tsvetkov
Nuclear Technology | Volume 206 | Number 11 | November 2020 | Pages 1740-1750
Technical Paper | doi.org/10.1080/00295450.2020.1746612
Articles are hosted by Taylor and Francis Online.
The optical properties of FLiBe salt in a Fluoride-Salt-Cooled High-Temperature Reactor (FHR) present an opportunity to utilize Cerenkov radiation measurements to reconstruct the power profile in the core and detect various anomalies that could occur during operation. The Cerenkov light produced within a coolant channel is strongly correlated to the fission rate density and power level in the surrounding fuel assembly and travels freely through the optically transparent salt. The light coming from coolant channels can be measured by an array of photon detectors above the channels or a system of mirrors and light guides to a detector. This allows the assembly-level power profile in the core to be reconstructed, identifying hot spots within the core. By comparing the levels of light detected to a baseline operating state, anomalies can be detected as well as their location within the core. The method has been developed and assessed computationally to realize this approach for FHRs. Details of the method and demonstrations of its applications are discussed in this paper.