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Tokamak and Spherical Tokamak Research in Japan

Y. Takase et al. (17R010)

Fusion Science and Technology / Volume 51 / Number 2T / February 2007 / Pages 46-51

Technical Paper / Open Magnetic Systems for Plasma Confinement /

Japanese tokamak and spherical tokamak (ST) research programs are described. Tokamak research will focus on steady state high (N = 3.5-5.5) research on JT-60SA (formerly NCT) in support of ITER and DEMO. JT-60SA will also serve as the Satellite Tokamak under the JA-EU Broader Approach framework. ST research has been reorganized as the All-Japan ST Research Program, aiming for creative and innovative research focused on ultra-high and ultra-long pulse regimes. Results of plasma start-up, RF heating, and plasma merging/ reconnection experiments are summarized. Prospects of contribution of low aspect ratio tokamaks to fusion energy development, are presented.

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