2016 Annual Meeting

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Oral Presentation

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

[2L17-20] Fusion reactor materials (Material strength evaluation method / Structual health monitoring)

Sun. Mar 27, 2016 5:25 PM - 6:30 PM Room L (Lecture Rooms C C105)

Chair: Ryuta Kasada (Kyoto Univ.)

5:25 PM - 5:40 PM

[2L17] Diagnostics of surface modification of plasma facing materials using optical spectral reflectance measurements

＊Norihito Tanaka1, Mitutaka Miyamoto1, Naoaki Yoshida2, Masayuki Tokitani3, Akio Sagara3 (1.Shimane Univ., 2.RIAM, Kyusyu Univ., 3.NIFS)

Keywords:Diagnostics of surface modification, Optical reflectivity, irradiation damage, impurity deposition

核融合プラズマ対向材料の表面特性を正確に把握する手段として，実時間測定に応用できる光反射率測定を用いた診断手法を提案した．主にLHDプラズマに曝した試料の光学特性測定を行い，光学特性変化から試料表面の不純物堆積層膜厚の推定が可能である事を示した．