[2L19-23] Hydrogen Isotopes in Materials

[2L21] Gamma-ray irradiation effects on deuterium retention behavior in reduced activation ferritic steel F82H and tritium permeation barrier ceramic coatings

*Shota Nakazawa¹, Kazuki Nakamura¹, Hikari Fujita², Hans Maier³, Thomas Schwarz-Selinger³, Yuji Hatano⁴, Naoko Ashikawa^5,6, Wataru Inami¹, Yoshimasa Kawata¹, Takumi Chikada¹ (1. Shizuoka Univ., 2. Univ. of Tokyo, 3. Max Planc Institut, 4. Univ. of Toyama, 5. NIFS, 6. SOKENDAI)

Keywords:Tritium, Retention, Gamma-ray, Irradiation, Structural material

Tritium retention in structural materials is one of serious problems in fusion blanket systems. Moreover, severe radiation environments may affect the hydrogen isotope retention behavior. In this study, gamma-ray irradiation effects on deuterium retention in reduced activation ferritic steel F82H and tritium permeation barrier ceramic coatings have been investigated.