National Institutes of Natural Science, National Institute for Fusion Science
Department of Helical Plasma Research, Fundamental Physics Simulation Research Division

News

Best Presentation Award, Best Poster Award

Mr. Seiki Saito won the Best Presentation Award and Best Poster Award at the Intermediate Presentation, Depertment of Energy Engineering and Science, Nagoya University.
  • Date: Sep. 21, 2010
  • Title:
    "Reaction between Graphene and Hydrogen Atom by Molecular Dynamics Simulation"

Click the figure to see a lager size.
  • Context:
    The interaction between carbon divertor and hydrogen plasma is investigated by molecular dynamics simulation. Polycrystalline graphite materials are employed for the divertor plates in LHD. The polycrystalline graphite consists of many single crystalline graphites whose crystal axes are disordered. Furthermore, the single crystalline graphite has the structure which many graphene sheets are stacked. It means that the hydrogen plasma which perpendicularly entered into the divertor plate has an oblique incident angle for each graphene sheet. This study, therefore, the reaction rates of reflection, penetration and adsorption, and their physical mechanism are revealed by investigating the incident angle dependence of hydrogen atom injection into a graphene sheet.
  • References:
    Seiki Saito, Atsushi Ito and Hiroaki Nakamura:
    "Incident angle dependence of reactions between graphene and hydrogen atom by molecular dynamics simulation",
    Plasma and Fusion Research Special Issue, Accepted for Publication (2010).


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