Overview of goals and performance of ITER and strategy for plasma–wall interaction investigation
Overview of goals and performance of ITER and strategy for plasma–wall interaction investigation
复制标题
DOI：
10.1016/j.jnucmat.2004.09.063
复制
发表时间：
2005-03
影响因子：
3.1
通讯作者：
M. Shimada;A. Costley;G. Federici;K. Ioki;A. Kukushkin;V. Mukhovatov;A. Polevoi;M. Sugihara
中科院分区：
文献类型：
--
作者：
M. Shimada;A. Costley;G. Federici;K. Ioki;A. Kukushkin;V. Mukhovatov;A. Polevoi;M. Sugihara
最近在实验、模型和理论方面的进展增强了人们对ITER能够在感应操作中实现高Q(>；10)目标的信心。此外，在“改进的混合”模式下的实验结果表明，在具有良性ELMS的长脉冲(>；1000s)中，高Q(>；10)操作是可能的。然而，在对几个关键方面的预测方面仍然存在相当大的不确定性；例如，氚的滞留、破坏、杂质控制、ELMS、溶胶传输和粉尘。热核实验堆至少在早期运行阶段需要灵活的运行方案，以适应预测中的不确定性，探索广阔的运行空间，并纳入新开发的控制方案。由于这些不确定性，在性能预测中采用了保守的假设，并计划逐步实施与反应堆相关的等离子体材料，如钨。
Recent progress in experiments, modeling and theory has increased confidence that ITER can achieve its goal of high Q (>10) in inductive operation. Further, experimental results in the ‘improved hybrid’ regime suggest a possibility of high Q (>10) operation in a long pulse (>1000s) with benign ELMs. However, considerable uncertainty still exists in the prediction of several key aspects; for example, tritium retention, disruption, impurity control, ELMs, SOL transport and dust. ITER requires flexibility of operation scenarios at least in the early operation phase to accommodate uncertainties in prediction, to explore wide operational spaces and to incorporate newly developed control schemes. Because of these uncertainties conservative assumptions are adopted in performance predictions, and step-wise implementation of reactor-relevant plasma-facing material, such as tungsten, are planned.