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(CT-2) Performance of ITER as Burning Plasma Experiment

M. Shimada¹⁾, V. Mukhovatov¹⁾, G. Federici²⁾, Y. Gribov¹⁾, A. Kukushkin²⁾, Y. Murakami³⁾, A. Polevoi¹⁾, V. Pustovitov⁴⁾, S. Sengoku⁵⁾, M. Sugihara^1)
 
1) ITER IT, ITER Naka JWS, Naka-Machi, Naka-Gun, Ibaraki, Japan
²⁾ International Team, ITER Garching JWS, Germany
³⁾ Toshiba Corp., Minato-ku, Tokyo, Japan
⁴⁾ Kurchatov Institute, Moscow, Russia
⁵⁾ Japan Atomic Energy Research Institute, Mukouyama, Naka-machi, Naka-gun, Ibaraki-ken, Japan,

Abstract.  Recent performance analysis has improved confidence in achieving Q $\geq$ 10 in inductive operation in ITER. Performance analysis based on empirical scaling shows the feasibility of achieving Q $\geq$ 10 in inductive operation with a sufficient margin. Theory-based core modeling indicates the need of high pedestal temperature (2-4 keV) to achieve Q $\geq$ 10, which is in the range of projection with pedestal scaling. The heat load of type-I ELM could be made tolerable by high density operation and further tilting the target plate (if necessary). Pellet injection from High-Field Side would be useful in enhancing Q and reducing ELM heat load. Steady state operation scenarios have been developed with modest requirement on confinement improvement and beta (H_H98(y,2) $\geq$ 1.3 and $\beta_{N}^{}$ $\geq$ 2.6). Stabilisation of RWM, required in such regimes, is feasible with the present saddle coils and power supplies with double-wall structure taken into account.

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