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Division Spotlight
Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
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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Nuclear Technology
Fusion Science and Technology
Latest News
Securing the advanced reactor fleet
Physical protection accounts for a significant portion of a nuclear power plant’s operational costs. As the U.S. moves toward smaller and safer advanced reactors, similar protection strategies could prove cost prohibitive. For tomorrow’s small modular reactors and microreactors, security costs must remain appropriate to the size of the reactor for economical operation.
H. Cho, J.-S. Yoon, M.-Y. Song
Fusion Science and Technology | Volume 63 | Number 3 | May 2013 | Pages 349-357
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-A16441
Articles are hosted by Taylor and Francis Online.
In plasmas including fusion plasmas, various molecules exist in neutral and ionized forms and interact with each other as well as with electrons and photons. To properly understand and control the plasma, cross sections of these interactions are needed. Many of these interaction processes are initiated by electron scattering, and therefore an understanding of the electron scattering with atoms and molecules in plasma and their associated cross sections are very important to understanding of plasma. In this paper we evaluate the total electron scattering cross sections (TCSs) for eight plasma-relevant molecules - C2F6, CF3Cl, CF3I, C3F8, c-C4F8, CH4, C2H4, and C2H6 - both to present recommended TCSs and to demonstrate evaluation methods. We have reviewed data from the literature up to mid-2012 and the energy range of interest is up to and including 100 eV. TCSs for these common molecules, which are supposed to be in the best situation among the scattering cross sections, are far from satisfactory. More activities in measurements of cross sections are required.