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時谷 政行
Associate Professor

TOKITANI, Masayuki

Teaching content

First walls and divertor interact with energetic fusion plasmas. Plasma-wall interaction study from the viewpoint of the microscopic and macroscopic is the main theme. The details are following. 1) Experiment study of formation mechanism of the microscopic defects on the materials exposed by energetic helium and hydrogen particles and impact of their defects to the fuel-inventory in the fusion devices. 2) Experiment study of change of the physical properties on the surface of the wall materials by formation of the Mixed-material deposition layer composed by metal and carbon. 3) Research and development of the divertor component for ultra-high-heat loading.

Course Division of Fusion System
Affiliation Fusion Systems Research Division
Department High Heat Flux Plasma Facing Materials Research Section
Degree Doctor of Engineering
Works [1] Masayuki Tokitani*, Yukinori Hamaji, Yutaka Hiraoka, Suguru Masuzaki, Hitoshi Tamura, Hiroyuki Noto, Teruya Tanaka, Tatsuya Tsuneyoshi, Yoshiyuki Tsuji, Takeo Muroga, Akio Sagara and the FFHR Design Group
Advanced multi-step brazing for fabrication of a divertor heat removal component
Nuclear Fusion 61 (2021) 046016

[2] Masayuki Tokitani*, Yukinori Hamaji, Yutaka Hiraoka, Suguru Masuzaki, Hitoshi Tamura, Hiroyuki Noto, Teruya Tanaka, Takeo Muroga, Akio Sagara, the FFHR Design Group
Application of the Advanced Multi-Step Brazing for fabrication of the high heat flux component
Journal of Nuclear Materials 538 (2020) 152264

[3] Masayuki Tokitani*, Mitsutaka Miyamoto, Suguru Masuzaki, Yuji Hatano, Sun Eui Lee, Yasuhisa Oya, Teppei Otsuka, Makoto Oyaidzu, Hironori Kurotaki, Tatsuya Suzuki, Dai Hamaguchi, Takumi Hayashi, Nobuyuki Asakura, Anna Widdowson, Stefan Jachmich, Marek Rubel and JET Contributors
Surface morphology of the bulk tungsten divertor tiles from JET ITER-like wall
Physica Scripta T171 (2020) 014010
Responsible course SOKENDAI: " Fusion Reactor Materials "
ORCID

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