Special Session (Nuclear Fusion):

Title:         Japanese Endeavor to Establish Technological Bases for Fusion Demonstration Reactor
Authors:      Hiroshi YAMADA
Abstract:     The establishment of technology bases required for the development of a fusion demonstration reactor (Fusion DEMO) has been discussed by a joint effort throughout the Japanese fusion community. The mission of Fusion DEMO is to achieve technological demonstration and economical feasibility of fusion energy. Basic concept of Fusion DEMO premised for investigation has been identified and the structure of technological issues to ensure the feasibility of this Fusion DEMO concept has been examined. Japanese fusion research and development is now in the phase to show the scientific and technological feasibility of fusion energy with the core project of ITER. The next phase is defined as the program with the core project of Fusion DEMO targeting technological demonstration and economic feasibility of fusion energy. In 2013, the Joint-Core Team consisting of experts from the Japanese fusion community including industry was launched in order to clarify technology which should be secured, maintained, and developed in Japan, to share the common target among industry, government, and academia, and to activate actions under a framework for implementation throughout Japan. The joint core team has pointed out that Fusion DEMO should be aimed at steady power generation beyond several hundred thousand kilowatts, availability which must be extended to commercialization, and overall tritium breeding to fulfill self-sufficiency of fuels. The necessary technological activities, such as superconducting coils, blanket, divertor and so on, have been sorted out and arranged in the chart with the time line to prospect the Japanese fusion roadmap.

Keywords:   Fusion DEMO, Reactor design, ITER, Roadmap, Technological issues
Pages:         009-009

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