2017 Annual Meeting

Presentation information

Oral presentation

V. Fusion Energy Engineering » 501-2 Fusion Reactor Material Science (Reactor and Blanket Materials, Irradiation Behavior)

[2B01-05] Hydrogen Isotope Behavior

Tue. Mar 28, 2017 9:30 AM - 10:50 AM Room B (16-102 Building No.16)

Chair: Ryuta Kasada (Kyoto Univ.)

10:15 AM - 10:30 AM

[2B04] Hydrogen isotope retention enhancement for tungsten exposed to QUEST plasma

*YASUHISA OYA1, YURINA Sato2, SHODAI SAKURADA3, YUKI UEMURA3, HIROE FUJITA3, KEISUKE AZUMA3, QUILA ZHOU2, NAOAKI YOSHIDA4, KAZUAKI HANADA4, TAKUMI CHIKADA1 (1. College of Science, Academic Institute, Shizuoka University, 2. Faculty of science, Shizuoka University, 3. Graduate School of Science and Technology, Shizuoka University, 4. Research Institute for Applied Mechanics, Kyushu University)

Keywords:Tungsten, Hydrogen isotope, QUEST

Elucidation of hydrogen isotope retention behavior is one of critical issues for fuel recycling. In this study, hydrogen isotope retention enhancement for W samples exposed to QUEST plasma during 2015 Fall-Winter campaign and 2016 spring-summer campaign was evaluated and compared. It was found that deposition was major interaction process for 2016 spring-summer campaign, although erosion was dominant for 2015 Fall-Winter campaign. Therefore the hydrogen isotope TDS spectra was quite different among these samples.