Secondary ELM Filaments in NSTX
Secondary ELM Filaments in NSTX
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DOI：
10.1016/j.jnucmat.2009.01.222
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发表时间：
2009-06
影响因子：
3.1
通讯作者：
R. Maqueda;R. Maingi;Joon-Wook Ahn;Nstx Team
中科院分区：
文献类型：
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作者：
R. Maqueda;R. Maingi;Joon-Wook Ahn;Nstx Team
在ELMS期间，国家球环实验的刮除层中观察到了丝状结构。初级细丝相当于ELM事件的直接结果，而“次级”细丝一般出现较晚，但仍在ELM事件开始后1ms内出现，具有与ELM间细丝(或斑点)相同的特征：极向自相关长度为∼4 cm，宽带频率和极向波数谱，径向速度为1-2 km/S。
Filamentary structures are observed in the scrape-off layer of the National Spherical Torus Experiment during ELMs. While the primary filaments correspond to a direct result of the ELM event, the ‘secondary’ filaments which occur generally later but still within 1ms of the ELM onset are observed to have the same characteristics as inter-ELM filaments (or blobs): poloidal auto-correlation lengths of ∼4cm, broadband frequency and poloidal wave number spectra and radial velocities of 1–2km/s. At the same time, no MHD modes are observed during the phase in which secondary filaments are present.