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Author

Satoshi Nishio

Bio: Satoshi Nishio is an academic researcher from Japan Atomic Energy Research Institute. The author has contributed to research in topics: Tokamak & Fusion power. The author has an hindex of 14, co-authored 72 publications receiving 676 citations.
Topics: Tokamak, Fusion power, Divertor, Blanket, Eddy current


Papers
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TL;DR: In this paper, three options of fusion DEMO plant are proposed characterized by functions of the center solenoid (CS), and the prime option uses a downsized CS, which does not provide sufficient V-s for plasma current ramp-up but supplies enough coil current for plasma shaping.

130 citations

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TL;DR: In this paper, a torus system is radially divided into equal sectors and each sector forms an assembly unit, all the piping and feeder systems are extracted to the spacious torus central region.

66 citations

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TL;DR: It is suggested that demonstrating the fusion as a viable source of energy in plant scale will be possible based on the successful operation of ITER, while a number of technical issues must be solved in coherent programs paralleling ITER.

57 citations

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TL;DR: In this article, the authors studied a concept of a commercial fusion power reactor (5.5 GW, electric output: 2.7 GW) having high environmental safety, high thermal efficiency and high availability.

39 citations

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TL;DR: In this paper, the impact of low activation materials to the fusion power reactor design is described based on the design of five fusion power reactors with different structural material/coolant combinations.

34 citations


Cited by
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Journal ArticleDOI
TL;DR: In this paper, the authors review the development, characterization, and irradiation effect studies for SiC composites for fusion energy applications and make the case that SiC composite are progressing from the stage of potential viability and proof-of-principle to one where they are ready for system demonstration, i.e., for flow channel inserts in Pb-Li blankets.

322 citations

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TL;DR: The silicon carbide fiber-reinforced SiC/SiC composite system for fusion applications has seen a continual evolution from development a fundamental understanding of the material system and its behavior in a hostile irradiation environment to the current effort which is directed at a broad-based program of technology maturation program as mentioned in this paper.

254 citations

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TL;DR: A review of the hydrogen permeation barriers which can be applied to the structural metals used in fusion power plants is presented in this article, where the need for barriers appears strongest in Pb-17Li blanket designs, although barriers are also necessary for other blanket and coolant systems.

234 citations

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TL;DR: The recent progress in the understanding and of basic phenomenon related to the use of SiC and SiC composite in fusion applications will be presented in this article, including both fundamental radiation effects in SiC, and engineering issues such as joining and general materials properties.

222 citations

Journal ArticleDOI
TL;DR: In this article, the results of such basic studies are incorporated in the recent alloy and microstructure design of two-phase gamma alloys, in particular with a controlled lamellar structure.
Abstract: Extensive progress and improvements have been made in the science and technology of gamma titanium aluminide alloys within the last decade. In particular, our understanding of their microstructural characteristics and property/microstructurc relationships has been substantially deepened. Based on these achievements, various engineering two-phase gamma alloys have been developed and their mechanical and chemical properties have been assessed. Aircraft and automotive industries arc pursuing their introduction for various structural components. At the same time, recent basic studies on the mechanical properties of two-phase gamma alloys, in particular with a controlled lamellar structure have provided a considerable amount of fundamental information on the deformation and fracture mechanisms of the two-phase gamma alloys. The results of such basic studies are incorporated in the recent alloy and microstructure design of two-phase gamma alloys. In this paper, such recent advances in the research and development of the two-phase gamma alloys and industrial involvement are summarized.

219 citations