[1G05-07] Tritium Permeation

[1G05] Tritium in tritiated water permeation through F82H

*Masanori Hara¹, Teppei Otsuka², Takumi Chikada³, Motoki Nakajima⁴, Takashi Nozawa⁴ (1. Univ. of Toyama, 2. Kindai Univ., 3. Shizuoka Univ., 4. QST)

Keywords:tritiated water, reduced activation steel, permeation

F82H has been developed for a reduced activation ferritic steel and will be used for fission and fusion reactors. We need to know the behavior of tritium in F82H and the reactivity between F82H and tritium compounds. When the F82H pipe is used for a cooling pipe in a fusion reactor, tritium in tritiated water in the upper stream would permeate to the lower stream through F82H. We considered the permeation of tritium in tritiated water through F82H. The tritium permeation through F82H was observed above 250 degrees C. The permeation rate depended on the heat cycles and the stored conditions.