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
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!
Latest Magazine Issues
Jul 2024
Jan 2024
Latest Journal Issues
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.
Ruihuan Li, Xiaoxiao Cao, Zhixian Su, Dan Sun, Yedi Chen, Wei Feng, Zhihui Zhang, Jijun Zhao
Fusion Science and Technology | Volume 77 | Number 6 | August 2021 | Pages 419-428
Technical Paper | doi.org/10.1080/15361055.2021.1920784
Articles are hosted by Taylor and Francis Online.
Density functional theory calculations were used to study the effects of inherent impurities C, N, and O on the stability and the self-trapping of interstitial He atoms in body-centered-cubic vanadium (V). The most stable site for the He atom nearby C, N, and O is the tetrahedral interstitial site (T-site) rather than the octahedral interstitial site (O-site). The presence of C, N, or O impurities reduces the stability of He in the T-site according to the calculated formation energies. The addition of C and O atoms is beneficial for He self-trapping while the addition of the N atom prevents He self-trapping in vanadium. The stable configurations for Xn-vacancy1 (XnVa1) are C2Va1, N2Va1, and O2Va1. The trapping energies of multiple He atoms captured by XnVa1 are investigated. Our results show that the presence of C, N, and O reduces vacancy trapping of He atoms. Our findings provide further understanding on the behavior of He atoms in vanadium with the influence of C, N, and O.