Loss of bootstrap current in vicinity of magnetic islands

Wang Feng; Li Jiquan; Qu Hongpeng; Peng Xiaodong; Xiao Yong

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Loss of bootstrap current in vicinity of magnetic islands

机译：磁岛附近的引导电流丧失

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Profiles of the ion density and bootstrap current in the vicinity of magnetic islands are investigated based on the first principles gyro-kinetic particle simulation via the gyro-kinetic toroidal code. The physics on the recovery of the ion density gradient inside the islands in various collision regimes is discussed. Simulation results show that for small magnetic islands, the ion density gradient can survive inside the island due to the combination effect of both the banana-orbit width of trapped ions and the drift-orbit displacement of passing ions. It is suggested that the recovery of the pressure gradient inside small islands may play a more important role in the reduction of driving force of the ion bootstrap current in the evolution of the neoclassical tearing mode, rather than the so-called finite banana-orbit effects. Published under license by AIP Publishing.

机译：基于通过陀螺动力学环形码的第一原理陀螺动力学粒子模拟研究了磁岛附近的离子密度和自卷流电流的轮廓。讨论了各种碰撞制度中岛内离子密度梯度的物理学。仿真结果表明，对于小磁岛，由于捕获离子的香蕉轨道宽度和通过离子的漂移轨道位移的组合效果，离子密度梯度可以在岛内生存。建议在小岛内的压力梯度的恢复可能在对新古典撕裂模式的演变中的驱动力的降低中，而不是所谓的有限香蕉轨道效应，在离子自动启动电流的降低中的恢复可能在减少离子自动卷划电流的降低中。通过AIP发布在许可证下发布。

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来源
《Physics of plasmas》 |2019年第5期|共9页
作者
Wang Feng; Li Jiquan; Qu Hongpeng; Peng Xiaodong; Xiao Yong;
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作者单位

Southwestern Inst Phys Chengdu 610041 Sichuan Peoples R China;

Southwestern Inst Phys Chengdu 610041 Sichuan Peoples R China;

Southwestern Inst Phys Chengdu 610041 Sichuan Peoples R China;

Southwestern Inst Phys Chengdu 610041 Sichuan Peoples R China;

Zhejiang Univ Hangzhou 310058 Zhejiang Peoples R China;

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正文语种 eng
中图分类等离子体物理学;
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专利

1. Loss of bootstrap current in vicinity of magnetic islands [J] . Wang Feng, Li Jiquan, Qu Hongpeng, Physics of plasmas . 2019,第5期

机译：磁岛附近的引导电流丧失
2. Magnetic island induced bootstrap current on island dynamics in tokamaks [J] . Shaing KC, Spong DA Physics of plasmas . 2006,第2期

机译：磁岛自举电流对托卡马克岛动力学的影响
3. Magnetic Island Formation in Coexisting System of Resonant Magnetic Perturbation and Perturbed Bootstrap Current [J] . Nishimura Seiya, Numata Ryusuke Journal of the Physical Society of Japan . 2019,第6期

机译：磁岛形成共振磁扰动和扰动自动训练电流
4. Simulations of the bootstrap current in small rotating magnetic islands [C] . A. Bergmann, E. Pali, A. G. Peeters Joint Varenna-Lausanne International Workshop on Theory of Fusion Plasmas . 2008

机译：小旋转磁岛中的引导电流模拟
5. Convective Power Loss Measurements in a Field Reversed Configuration with Rotating Magnetic Field Current Drive. [D] . Melnik, Paul. 2014

机译：使用旋转磁场电流驱动器以反向磁场进行对流功率损耗测量。
6. Nanoscale thermal phenomena in the vicinity of magnetic nanoparticles in alternating magnetic fields [O] . Andreina Chiu-Lam, Carlos Rinaldi -1

机译：交变磁场中磁性纳米粒子附近的纳米级热现象
7. Interaction of turbulence with magnetic islands: effect on bootstrap current. [O] . W. A. Hornsby, M. Siccinio, A. G. Peeters, 2016

机译：湍流与磁岛的相互作用：对自举电流的影响。
8. Stability of bootstrap current driven magnetic islands in stellarators. [R] . Hegna, C. C., Callen, J. D. 1994

机译：仿星器中自举电流驱动磁岛的稳定性。

Loss of bootstrap current in vicinity of magnetic islands

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