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Division Spotlight
Nuclear Nonproliferation Policy
The mission of the Nuclear Nonproliferation Policy Division (NNPD) is to promote the peaceful use of nuclear technology while simultaneously preventing the diversion and misuse of nuclear material and technology through appropriate safeguards and security, and promotion of nuclear nonproliferation policies. To achieve this mission, the objectives of the NNPD are to: Promote policy that discourages the proliferation of nuclear technology and material to inappropriate entities. Provide information to ANS members, the technical community at large, opinion leaders, and decision makers to improve their understanding of nuclear nonproliferation issues. Become a recognized technical resource on nuclear nonproliferation, safeguards, and security issues. Serve as the integration and coordination body for nuclear nonproliferation activities for the ANS. Work cooperatively with other ANS divisions to achieve these objective nonproliferation policies.
Meeting Spotlight
2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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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Fusion Science and Technology
Latest News
X-energy receives federal tax credit for TRISO fuel facility
Advanced reactor company X-energy has been awarded $148.5 million in tax credits under the Inflation Reduction Act for construction of its TRISO-X fuel fabrication facility in Oak Ridge, Tenn.
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.