Speaker
Yuki Edao
(Department of Blanket Systems Research)
Description
Various methods of tritium measurement have been applied depending on a chemical formof tritium. A method combined oxidation catalyst and water bubblers has been used as one of the most quantitative analysis methods for gaseous tritium. We previously developed a quantitative analysis system to measure gaseous tritium in a high accuracy using by an organic-based hydrophobic platinum catalyst. However, the previous tritium analysis system has a shortcoming that the organic-based catalyst has no resistance to a high temperature of more than 100ooC, so that the system was not able to measure combustible gas such as tritiated hydrocarbons because the heat of reaction of hydrocarbons combustion on catalyst was large. Then, we developed a hydrophobic platinum catalyst having heat resisting property and high activity to measure various chemical forms of tritium. A new quantitative analysis system using by the hydrophobic catalyst enhanced the thermal durability performed as good as the previous system over wide temperature range. The developed tritium measurement system is applicable widely for various tritium measurements,estimation of tritium generation rate at TBM, tritium behavior in various materials and so on. Details will be reported at the conference and the paper.
Co-authors
Katsumi Sato
(Department of Blanket Systems Research, Sector of Fusion Research and Development, Japan Atomic Energy Agency, Tokai, Ibaraki, Japan)
Takumi Hayashi
(Department of Blanket Systems Research, Sector of Fusion Research and Development, Japan Atomic Energy Agency, Tokai, Ibaraki, Japan)
Yasunori Iwai
(Department of Blanket Systems Research, Sector of Fusion Research and Development, Japan Atomic Energy Agency, Tokai, Ibaraki, Japan)
Yuki Edao
(Department of Blanket Systems Research, Sector of Fusion Research and Development, Japan Atomic Energy Agency, Tokai, Ibaraki, Japan)
