固体と氷界面研究へのトリチウムの応用

概要

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To investigate ice surface properties near the melting points, a tritium diffusion method was designed, developed and applied to laboratory-grown, single crystal ice. A quasi-liquid layer existing at the interface between the glass tube and the ice specimen served as a high speed path for the tritium diffusion. The experimental setup was focused to estimate the diffusion coefficient of tritium in a quasi-liquid layer at the interface. Preliminary results of the laboratory measurements conducted show that a quasi-liquid layer does exist, serving as a high speed diffusion path and that the diffusion coefficient is estimated to range from 10-13 to 10-12 m2/s at -0.8℃. Furthermore, separate experimental investigations are planned to obtain the numerical values of the diffusion coefficient and the layer thickness.
富山大学の論文