Liang Y, Koslowski H R, Thomas P R, Nardon E, Alper B, Andrew P, Andrew Y, Arnoux G, Baranov Y, Bécoulet M, Beurskens M, Biewer T, Bigi M, Crombe K, De La Luna E, de Vries P, Fundamenski W, Gerasimov S, Giroud C, Gryaznevich M P, Hawkes N, Hotchin S, Howell D, Jachmich S, Kiptily V, Moreira L, Parail V, Pinches S D, Rachlew E, Zimmermann O
Forschungszentrum Jülich GmbH, Association EURATOM-FZ Jülich, Institut für Plasmaphysik, Trilateral Euregio Cluster, D-52425 Jülich, Germany.
Phys Rev Lett. 2007 Jun 29;98(26):265004. doi: 10.1103/PhysRevLett.98.265004.
Type-I edge-localized modes (ELMs) have been mitigated at the JET tokamak using a static external n=1 perturbation field generated by four error field correction coils located far from the plasma. During the application of the n=1 field the ELM frequency increased by a factor of 4 and the amplitude of the D(alpha) signal decreased. The energy loss per ELM normalized to the total stored energy, DeltaW/W, dropped to values below 2%. Transport analyses shows no or only a moderate (up to 20%) degradation of energy confinement time during the ELM mitigation phase.
在JET托卡马克装置中，通过由位于远离等离子体处的四个误差场校正线圈产生的静态外部n = 1扰动场，I型边界局域模（ELM）已得到缓解。在施加n = 1场期间，ELM频率增加了4倍，D（α）信号的幅度减小。每个ELM的能量损失相对于总存储能量归一化后，即ΔW / W，降至2％以下的值。输运分析表明，在ELM缓解阶段，能量约束时间没有下降或仅适度下降（高达20％）。
