First measurements of edge localized mode ion energies in the ASDEX Upgrade far scrape-off layer
First measurements of edge localized mode ion energies in the ASDEX Upgrade far scrape-off layer
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DOI：
10.1088/0741-3335/53/6/065002
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发表时间：
2011-03
影响因子：
2.2
通讯作者：
M. Kocan;A. Herrmann;H. W. Müller;V. Rohde;T. Eich;M. Bernert;S. Carpentier-Chouchana;J. Gunn;A. Kirk;M. Komm;R. Pitts
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文献类型：
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作者：
M. Kocan;A. Herrmann;H. W. Müller;V. Rohde;T. Eich;M. Bernert;S. Carpentier-Chouchana;J. Gunn;A. Kirk;M. Komm;R. Pitts
在ASDEX Upgrade托卡马克远刮除层（SOL）中，首次采用阻滞场分析技术测量了边缘局域模（ELM）细丝携带的离子能量。能量，Ei ELM，超过160 eV，已被发现，5-6厘米外的分界线，衰变长度约为2厘米。测得的ELM粒子离子的温度在远SOL的范围内Ti ELM 50-80 eV，在很好的协议从两个简单的碰撞ELM平行传输模型的预测。在ELMs之间，在远SOL中观察到Ti Te 10 eV，与该区域中相对较强的离子-电子热耦合一致。
Using the retarding field analyzer technique, ion energies carried by edge localized mode (ELM) filaments have been measured for the first time in the far scrape-off layer (SOL) of the ASDEX Upgrade tokamak. Energies, Ei ELM, exceeding 160 eV have been found, 5–6 cm outside the separatrix, with a decay length of about 2 cm. The measured ELM particle ion temperature in the far SOL is in the range Ti ELM ≈ 50–80 eV, in good agreement with the predictions from two simple collisionless models of ELM parallel transport. In between ELMs, Ti ≈ Te ≈ 10 eV is observed in the far SOL, consistent with relatively strong ion–electron thermal coupling in this region.