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Report No.

Development of advanced inductive scenarios for ITER

Luce, T. C.*; Challis, C. D.*; Ide, Shunsuke; Joffrin, E.*; Kamada, Yutaka; Politzer, P. A.*; Schweinzer, J.*; Sips, A. C. C.*; Stober, J.*; Giruzzi, G.*; Kessel, C. E.*; Murakami, Masanori*; Na, Y.-S.*; Park, J. M.*; Polevoi, A. R.*; Budny, R. V.*; Citrin, J.*; Garcia, J.*; Hayashi, Nobuhiko; Hobirk, J.*; Hudson, B. F.*; Imbeaux, F.*; Isayama, Akihiko; McDonald, D. C.*; Nakano, Tomohide; Oyama, Naoyuki; Parail, V. V.*; Petrie, T. W.*; Petty, C. C.*; Suzuki, Takahiro; Wade, M. R.*; ITPA Integrated Operation Scenarios Topical Group*; ASDEX Upgrade Team*; DIII-D Team*; JET-EFDA Contributors*; JT-60U Team

The ITPA IOS group has coordinated experimental and modeling activity on the development of advanced inductive scenarios for applications in the ITER tokamak. This report documents the present status of the physics basis and the prospects for applications in ITER. The key findings are: (1) inductive scenarios capable of higher $$beta_{rm N} ge 2.4$$ than the ITER baseline scenario ($$beta_{rm N} = 1.8$$) with normalized confinement at or above the standard H-mode scaling have been established under stationary conditions on the four largest diverted tokamaks (AUG, DIII-D, JET, JT-60U) in a broad range in $$q_{rm 95}$$ and density; (2) MHD modes can play a key role in reaching stationary high performance, but also define the stability and confinement limits; (3) the experiments have yielded clearer measurements of the normalized gyroradius scalin; and (4) coordinated modeling activity supports the present research by clarifying the most significant uncertainties in the projections to ITER.



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Category:Physics, Fluids & Plasmas



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