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!
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Nuclear Science and Engineering
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Fusion Science and Technology
Latest News
NRC engineers share their expertise at the University of Puerto Rico
Robert Roche-Rivera and Marcos Rolón-Acevedo are licensed professional engineers who work at the U.S. Nuclear Regulatory Commission. They are also alumni of the University of Puerto Rico–Mayagüez (UPRM) and have been sharing their knowledge and experience with students at their alma mater since last year, serving as adjunct professors in the university’s Department of Mechanical Engineering. During the 2023–2024 school year, they each taught two courses: Fundamentals of Nuclear Science and Engineering, and Nuclear Power Plant Engineering.
Grzegorz Karwasz, Kamil Fedus
Fusion Science and Technology | Volume 63 | Number 3 | May 2013 | Pages 338-348
Technical Paper | Selected papers from IAEA-NFRI Technical Meeting on Data Evaluation for Atomic, Molecular and Plasma-Material Interaction Processes in Fusion, September 4-7, 2012, Daejeon, Republic of Korea | doi.org/10.13182/FST13-A16440
Articles are hosted by Taylor and Francis Online.
Operation of thermonuclear reactors will require knowledge of numerous cross sections for electron interaction with atoms and molecules, largely unknown at present and difficult for experiments. Theory is needed, but first it has to be verified on laboratory-accessible targets. A few working hypotheses and systematic approaches for various electron scattering processes are recommended. We discuss briefly analogies between total cross sections for scattering on nonpolar (BF3, CO2), polar (H2O, NH3, PF3), reactive (BCl3, HCl), and hexafluoride (SF6, WF6) molecules. For partial cross sections (ionization, elastic, electronic excitation), we search for some partitioning schemes. Similarly, we treat the vibrational excitation at shape resonances in linear triatomic molecules (N2O, CO2, OCS). Electron attachment for targets such as CCl4 or CF3I rises quickly toward the zero-energy limit; semiempirical approaches fail, but new theories work well. The paper, in general, shows ways to multitask construction of cross sections rarely measured in laboratories.