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Overview of ASDEX Upgrade results — development of integrated operating scenarios for ITER

机译:ASDEX升级结果概述-为ITER开发集成的操作方案

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Significant progress has been made on ASDEX Upgrade during the last two years in the basic understanding of transport, in the extension of the improved H-mode in parameter space and towards an integrated operating scenario and in the development of control methods for major performance limiting instabilities. The important features were the understanding of particle transport and the control of impurity accumulation based on it, the satisfactory operation with predominantly tungsten-clad walls, the improved H-mode operation over density ranges and for temperature ratios covering (non-simultaneously) the ITER requirements on ν~*, n_(GW) and T_e/T_i, the ELM frequency control by pellet injection and the optimization of NTM suppression by DC-ECCD through variation of the launching angle. From these experiments an integrated scenario has emerged which extrapolates to a 50% improvement in n T τ or a 30% reduction of the required current when compared with the ITER base-line assumptions, with moderately peaked electron and controllable high-Z density profiles.
机译:在过去的两年中,ASDEX升级在运输的基本理解,参数空间改进的H模式的扩展,集成操作方案的开发以及主要性能限制不稳定性的控制方法的开发方面都取得了重大进展。 。重要的特征是对颗粒传输的理解和基于此的杂质积累控制,主要是钨包覆壁的令人满意的操作,在密度范围内改进的H模式操作以及覆盖(不同时)ITER的温度比对ν〜*,n / n_(GW)和T_e / T_i的要求,通过丸粒注入进行的ELM频率控制以及通过改变发射角度来通过DC-ECCD优化NTM抑制。从这些实验中,出现了一个综合的情况,与ITER基线假设相比,可以得出n Tτ改善50%或所需电流减少30%的结论,其中电子的峰值适中,可控的高Z密度曲线可控。

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