[2G17-22] Tungsten

[2G18] Quantitative analytical method of tritium in tungsten

(2)Tritium analysis on tungsten samples with irradiation damage

*Naoko Ashikawa^1,2, Kazuaki Kasai³, Yuji Torikai³, Rion Nishida³, Akira Taguchi⁴, Kiyohiro Yabuuchi⁵, Yoji Someya⁶ (1. NIFS, 2. SOKENDAI, 3. Ibaraki Univ., 4. Univ. of Toyama, 5. Kyoto Univ., 6. QST)

Keywords:Quantitative tritium analysis, Tungsten, plasma exposure, Iron ion irradiation

Understanding tritium (T) retention and decontamination is critical for obtaining the construction and operational licenses of the fusion plant. For the demonstration of the operational condition of materials with is located in the plasma vacuum vessel, plasma exposure, and iron (Fe) irradiation are treated on the W. And the W specimens were exposed to the T gas. Visualized tritium contamination, including depth information on Fe irradiated W with the chemical etching method, is shown.