[2C14-18] Behaviors of Hydrogen Isotopes in Fusion Materials

[2C16] Tritium retention characteristics in dust particles in JET with ITER-like wall

*Teppei Otsuka¹, Suguru Masuzaki², Naoko Ashikawa², Yuji Hatano⁴, Nobuyuki Asakura³, Takumi Suzuki³, Tatsuya Suzuki³, Kanetsugu Isobe³, Takumi Hayashi³, Masayuki Tokitani² (1. Kindai Univ., 2. NIFS, 3. QST, 4. University of Toyama)

Keywords:Dust, Tritium, Imaging plate, Electron Probe Micro Analyzer

It is important to understand and determine tritium (T) retention and its behavior in dust with repect to the particle microstruture and composition. In the reported study, we have applied a tritium imaging plate technique (TIPT) in combination with an electron-probe microscopic (EPM) technique to examine a T retention characteristic in individual dust particle collected in the Joint European Torus with the ITER-like Wall (JET-ILW) after the first campaign in 2011-2012.