Concept of core and divertor plasma for fusion DEMO plant at JAERI

M. Sato, S. Sakurai, S. Nishio, K. Tobita, T. Inoue, Y. Nakamura, K. Shinya, H. Fujieda

研究成果: ジャーナルへの寄稿会議記事査読

13 被引用数 (Scopus)


Fusion DEMO plant design at JAERI directs toward compactness and economy of the reactor with a fusion output at 3 GW level. The smaller size of the center solenoid (CS) has a large impact on reducing the reactor size and weight. Three candidates for CS, namely "-less", "slim" and "full" CS, are considered according to the role of CS coil that is plasma ramp up and plasma shaping. From points of views of technical feasibility, obtained triangularity (δx) and weight of the reactor, the slim-CS is selected as the candidate for DEMO at JAERI. For slim-CS, high δx (≥0.43), which is enough to suppress giant ELMs, is obtained, and highly radiative outer divertor is required in steady state power handling. The consistent equilibrium was found to satisfy the divertor requirements and radial build. During the plasma current ramp up phase, the acceleration voltage of neutral beam injection (NBI) has to be changed more than two times. In order to inject sufficient power during the low-energy beam injection, the present technology must be replaced by a new constant-current, variable-voltage technology.

ジャーナルFusion Engineering and Design
8-14 PART B
出版ステータス出版済み - 2006 2月
イベントProceedings of the Seventh International Symposium on Fusion Nuclear Technology ISFNT-7 Part B -
継続期間: 2005 5月 222005 5月 27


「Concept of core and divertor plasma for fusion DEMO plant at JAERI」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。