[1L12-14] Hydrogen Isotope Behavior

[1L14] Change in Tritium Release Behavior of advanced LiT₂iO₃-Li₄SiO₄ Mixed Ceramic Materials by neutron fluence

*Asahi Sanfukuji Sanfukuji¹, Qilai Zhou^2,1, Kobayashi Makoto³, Oya Yasuhisa¹ (1. Shizuoka Univ., 2. Wuhan University of Technology., 3. NIFS)

Keywords:Blanket, Tritium, Mixture ceramics

The understanding of tritium release behavior of tritium breeders is important. In this study, Li₂TiO₃-Li₄SiO₄ samples with lead prepared at Wuhan University of Technology were neutron irradiated in the Kyoto Research Reactor to evaluate tritium release behavior by thermal desorption spectroscopy and total released tritium release by liquid scintillation. The defect species and their extinction behavior was evaluated by electron spin resonance. The TDS experiments show that the amount of total tritium released was more than twice that of the sample with a neutron fluence of 7.92 × 10¹⁶ n・cm^-2 compared to 3.96 × 10¹⁶ n・cm^-2. In the presentation, we will present how the tritium release behavior changed with different neutron fluences