Analysis of Radiative Mantle Formation by Impurity Seeding in ITER
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概要
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In order to reduce high heat load on divertor plate in fusion reactors, we investigated radiative mantle formation scenarios by impurity seeding into scrape off layer (SOL) in ITER using the TOTAL simulation code. The low-Z impurity, like He, could not form a radiative mantle and have almost no contribution to the reduction of divertor heat load. On the contrary, the medium-Z impurity, like Kr, can form radiative mantle definitely and can radiate about 84% (core:33% / mantle:51%) of input power inside the last closed flux surface (LCFS) without any serious changes in density and temperature profile, and without inducing back transition from H to L mode. It can reduce divertor heat load about 60% compared with the case of no impurity injection in ITER.
著者
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Yamazaki Kozo
Department Of Nuclear Engineering Faculty Of Engineering University Of Tokyo
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Shoji Tatsuo
Department Of Energy Engineering And Science Nagoya University
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Arimoto Hideki
Department Of Energy Engineering And Science Nagoya University
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Yamada Ikuhiro
Departments of Gastroenterology Akita University Graduate School of Medicine
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OISHI Tetsutarou
Department of Energy Engineering and Science, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8093, Japan
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ARIMOTO Hideki
Department of Energy Engineering and Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603 Japan
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OISHI Tetsutarou
Department of Energy Engineering and Science, Graduate School of Engineering, Nagoya University
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OISHI Tetsutarou
Department of Energy Engineering and Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603 Japan
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YAMAZAKI Kozo
Department of Energy Engineering and Science, Graduate School of Engineering, Nagoya University
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