Effects of background plasma characteristics on tungsten impurity transport in the SOL/divertor region using IMPGYRO code
Effects of background plasma characteristics on tungsten impurity transport in the SOL/divertor region using IMPGYRO code
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DOI：
10.1016/j.jnucmat.2014.10.013
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发表时间：
2015-08
影响因子：
3.1
通讯作者：
S. Yamoto;Y. Homma;K. Hoshino;Y. Sawada;X. Bonnin;D. Coster;R. Schneider;A. Hatayama
中科院分区：
文献类型：
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作者：
S. Yamoto;Y. Homma;K. Hoshino;Y. Sawada;X. Bonnin;D. Coster;R. Schneider;A. Hatayama
用IMPGYRO程序研究了高再循环区和部分分离区钨杂质输运特性的差异。背景等离子体配置文件从JT-60 U模型的几何形状，计算SOLPS，已被使用。为了获得这样的特征制度，我们改变了电子（Qe）和离子（Qi）的输入功率在核心边界。在高再循环制度中，钨杂质被输送到SOL的上游。另一方面，在部分分离的制度，大多数钨杂质的本地化附近的内部和外部偏滤器。这些特征主要与背景等离子体温度和离子流有关。
The difference of tungsten impurity transport characteristics between a high recycling regime and a partially detached regime has been studied with the IMPGYRO code. Background plasma profiles from a JT-60U model geometry, computed from SOLPS, have been used. To obtain such characteristic regimes, we have changed electron (Qe) and ion (Qi) input powers at the core boundary. In the high-recycling regime, the tungsten impurities are transported toward the upstream of the SOL. On the other hand, in the partially detached regime, most tungsten impurities are localized near the inner and outer divertors. These features are mainly related to the background plasma temperature and ion flow.