The frequently interrupted regime of neoclassical tearing modes (FIR-NTMs): required plasma parameters and possibilities for its active control

S. Gunter; M. Maraschek; M. de Baar; D. F. Howell; E. Poli; E. Strumberger; C. Tichmann

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The frequently interrupted regime of neoclassical tearing modes (FIR-NTMs): required plasma parameters and possibilities for its active control

机译：新古典撕裂模式（FIR-NTM）经常中断的状态：所需的血浆参数及其主动控制的可能性

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The plasma parameters required for the occurrence of (3, 2) FIR-NTMs and thus good confinement properties at high normalized plasma pressure (β_N) are investigated. Both on ASDEX Upgrade and on JET it is found that, with remarkable consistency between the devices, for a variety of plasma parameters in conventional current profile scenarios, this regime establishes itself for discharges with sufficient high normalized plasma pressure at mode onset, β_(N,onset) > 2.3. An active triggering of this regime has been achieved by lowering the magnetic shear at the q = 4/3 rational surface. That way an ideal (4, 3) MHD mode is being destabilized, forcing the required three-wave coupling between the (3, 2) NTM, (1,1) and (4, 3) mode activity.

机译：研究了发生（3，2）FIR-NTM所需的血浆参数，以及因此在高归一化血浆压力（β_N）下良好的封闭性能。在ASDEX升级版和JET上都发现，由于设备之间具有显着的一致性，对于常规电流曲线场景中的各种等离子体参数，该机制可以在模式开始时以足够高的归一化等离子体压力建立放电，β_（N ，开始）> 2.3。通过降低q = 4/3有理表面处的磁切变，已经实现了对该状态的主动触发。这样，理想的（4，3）MHD模式就不稳定了，从而迫使（3，2）NTM，（1,1）和（4，3）模式活动之间需要三波耦合。

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来源
《Nuclear fusion》 |2004年第4期|p. 524-532|共9页
作者
S. Gunter; M. Maraschek; M. de Baar; D. F. Howell; E. Poli; E. Strumberger; C. Tichmann;
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作者单位

MSPI fur Plasmaphysik, D-85748, EURATOM-Association, Garching, Germany;

MSPI fur Plasmaphysik, D-85748, EURATOM-Association, Garching, Germany;

FOM instituut voor plasmafysica, Rijnhuizen, 3430 BE Nieuwegein, The Netherlands;

EURATOM/UKAEA Fusion Association, Culham Science Centre, Abingdon, Oxon, 0X14 3DB, UK;

MSPI fur Plasmaphysik, D-85748, EURATOM-Association, Garching, Germany;

MSPI fur Plasmaphysik, D-85748, EURATOM-Association, Garching, Germany;

MSPI fur Plasmaphysik, D-85748, EURATOM-Association, Garching, Germany;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类原子核物理学、高能物理学;
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1. Temporal evolution of neoclassical tearing modes in the frequently interrupted regime [J] . Dumbrajs O, Igochine V, Gude A, Physics of plasmas . 2010,第4期

机译：在频繁中断的制度下新古典主义撕裂模式的时间演变
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3. On the requirements to control neoclassical tearing modes in burning plasmas [J] . Sauter O, Henderson MA, Ramponi G, Plasma physics and controlled fusion . 2010,第2期

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4. Simultaneous control of plasma profiles and neoclassical tearing modes with actuator management in tokamaks [C] . E. Maljaars, H. van den Brand, F. Felici, EPS Conference on Plasma Physics . 2016

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5. Stabilization of neoclassical tearing modes in tokamak fusion plasmas via extremum seeking [D] . Wehner, William P. 2009

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6. On the interplay between neoclassical tearing modes and nonlocal transport in toroidal plasmas [O] . X. Q. Ji, Y. Xu, C. Hidalgo, -1

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7. Temporal evolution of neoclassical tearing modes in the frequently interrupted regime [O] . Dumbrajs, O., Igochine, V., Gude, A., 2010

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The frequently interrupted regime of neoclassical tearing modes (FIR-NTMs): required plasma parameters and possibilities for its active control

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