Effects of magnetic islands on bootstrap current in toroidal plasmas

Dong, G.; Lin, Z.

doi:10.1088/1741-4326/57/3/036009

Title: Effects of magnetic islands on bootstrap current in toroidal plasmas

Journal Article · Mon Dec 19 00:00:00 EST 2016 · Nuclear Fusion

DOI:https://doi.org/10.1088/1741-4326/57/3/036009· OSTI ID:1347146

Dong, G. ^[1]; Lin, Z. ^[2]

Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Univ. of California, Irvine, CA (United States). Dept. of Physics and Astronomy

The effects of magnetic islands on electron bootstrap current in toroidal plasmas are studied using gyrokinetic simulations. The magnetic islands cause little changes of the bootstrap current level in the banana regime because of trapped electron effects. In the plateau regime, the bootstrap current is completely suppressed at the island centers due to the destruction of trapped electron orbits by collisions and the flattening of pressure profiles by the islands. In the collisional regime, small but finite bootstrap current can exist inside the islands because of the pressure gradients created by large collisional transport across the islands. Lastly, simulation results show that the bootstrap current level increases near the island separatrix due to steeper local density gradients.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF); Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Fusion Energy Sciences (FES)

Grant/Contract Number:: FC02-08ER54976; AC02-09CH11466; AC05-00OR22725; AC02-05CH11231

OSTI ID:: 1347146

Alternate ID(s):: OSTI ID: 1336510

Report Number(s):: PPPL-5326; China Scholarship Council [201206010268]; TRN: US1701122

Journal Information:: Nuclear Fusion, Vol. 57, Issue 3; ISSN 0029-5515

Publisher:: IOP ScienceCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 15 works

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References (36)

Observation of Nonlinear Neoclassical Pressure-Gradient–Driven Tearing Modes in TFTR Chang, Z.; Callen, J. D.; Fredrickson, E. D. Physical Review Letters, Vol. 74, Issue 23 https://doi.org/10.1103/PhysRevLett.74.4663	journal	June 1995
Evolution of the Current Density Profile Associated with Magnetic Island Formation in JT-60U Oikawa, T.; Isayama, A.; Fujita, T. Physical Review Letters, Vol. 94, Issue 12 https://doi.org/10.1103/PhysRevLett.94.125003	journal	April 2005
Theory of plasma transport in toroidal confinement systems Hinton, F. L.; Hazeltine, R. D. Reviews of Modern Physics, Vol. 48, Issue 2 https://doi.org/10.1103/RevModPhys.48.239	journal	April 1976
Neoclassical tearing modes and their control La Haye, R. J. Physics of Plasmas, Vol. 13, Issue 5 https://doi.org/10.1063/1.2180747	journal	May 2006
Chapter 3: MHD stability, operational limits and disruptions Hender, T. C.; Wesley, J. C.; Bialek, J. Nuclear Fusion, Vol. 47, Issue 6 https://doi.org/10.1088/0029-5515/47/6/S03	journal	June 2007
Behaviour of turbulent transport in the vicinity of a magnetic island Poli, E.; Bottino, A.; Peeters, A. G. Nuclear Fusion, Vol. 49, Issue 7 https://doi.org/10.1088/0029-5515/49/7/075010	journal	May 2009
Modulation of Core Turbulent Density Fluctuations by Large-Scale Neoclassical Tearing Mode Islands in the DIII-D Tokamak Bardóczi, L.; Rhodes, T. L.; Carter, T. A. Physical Review Letters, Vol. 116, Issue 21 https://doi.org/10.1103/PhysRevLett.116.215001	journal	May 2016
The nonlinear coupling between gyroradius scale turbulence and mesoscale magnetic islands in fusion plasmas Hornsby, W. A.; Peeters, A. G.; Snodin, A. P. Physics of Plasmas, Vol. 17, Issue 9 https://doi.org/10.1063/1.3467502	journal	September 2010
Gyrokinetic simulations with external resonant magnetic perturbations: Island torque and nonambipolar transport with plasma rotation Waltz, R. E.; Waelbroeck, F. L. Physics of Plasmas, Vol. 19, Issue 3 https://doi.org/10.1063/1.3692222	journal	March 2012
The non-linear evolution of the tearing mode in electromagnetic turbulence using gyrokinetic simulations Hornsby, W. A.; Migliano, P.; Buchholz, R. Plasma Physics and Controlled Fusion, Vol. 58, Issue 1 https://doi.org/10.1088/0741-3335/58/1/014028	journal	November 2015
Verification of a magnetic island in gyro-kinetics by comparison with analytic theory Zarzoso, D.; Casson, F. J.; Hornsby, W. A. Physics of Plasmas, Vol. 22, Issue 2 https://doi.org/10.1063/1.4908549	journal	February 2015
Dynamics of ion temperature gradient turbulence and transport with a static magnetic island Izacard, Olivier; Holland, Christopher; James, Spencer D. Physics of Plasmas, Vol. 23, Issue 2 https://doi.org/10.1063/1.4941704	journal	February 2016
Magnetic island evolution in the presence of ion-temperature gradient-driven turbulence Ishizawa, A.; Waelbroeck, F. L. Physics of Plasmas, Vol. 20, Issue 12 https://doi.org/10.1063/1.4838176	journal	December 2013
Diffusion Driven Plasma Currents and Bootstrap Tokamak Bickerton, R. J.; Connor, J. W.; Taylor, J. B. Nature Physical Science, Vol. 229, Issue 4 https://doi.org/10.1038/physci229110a0	journal	January 1971
Interaction of turbulence with magnetic islands: effect on bootstrap current Hornsby, W. A.; Siccinio, M.; Peeters, A. G. Plasma Physics and Controlled Fusion, Vol. 53, Issue 5 https://doi.org/10.1088/0741-3335/53/5/054008	journal	April 2011
Monte Carlo f simulation of the bootstrap current in the presence of a magnetic island Poli, E.; Peeters, A. G.; Bergmann, A. Plasma Physics and Controlled Fusion, Vol. 45, Issue 2 https://doi.org/10.1088/0741-3335/45/2/301	journal	December 2002
Kinetic effects on the currents determining the stability of a magnetic island in tokamaks Poli, E.; Bergmann, A.; Casson, F. J. Plasma Physics Reports, Vol. 42, Issue 5 https://doi.org/10.1134/S1063780X16050135	journal	May 2016
The bootstrap current in small rotating magnetic islands Bergmann, A.; Poli, E.; Peeters, A. G. Physics of Plasmas, Vol. 16, Issue 9 https://doi.org/10.1063/1.3234252	journal	September 2009
Turbulent Transport Reduction by Zonal Flows: Massively Parallel Simulations Lin, Z. Science, Vol. 281, Issue 5384 https://doi.org/10.1126/science.281.5384.1835	journal	September 1998
Effects of magnetic islands on drift wave instability Jiang, P.; Lin, Z.; Holod, I. Physics of Plasmas, Vol. 21, Issue 12 https://doi.org/10.1063/1.4903910	journal	December 2014
The Implementation of Magnetic Islands in Gyrokinetic Toroidal Code Jiang, Peng; Lin, Zhihong; Holod, Ihor Plasma Science and Technology, Vol. 18, Issue 2 https://doi.org/10.1088/1009-0630/18/2/05	journal	February 2016
Impact of rotating magnetic islands on density profile flattening and turbulent transport Zarzoso, D.; Hornsby, W. A.; Poli, E. Nuclear Fusion, Vol. 55, Issue 11 https://doi.org/10.1088/0029-5515/55/11/113018	journal	September 2015
Electromagnetic formulation of global gyrokinetic particle simulation in toroidal geometry Holod, I.; Zhang, W. L.; Xiao, Y. Physics of Plasmas, Vol. 16, Issue 12 https://doi.org/10.1063/1.3273070	journal	December 2009
Transport of Energetic Particles by Microturbulence in Magnetized Plasmas Zhang, Wenlu; Lin, Zhihong; Chen, Liu Physical Review Letters, Vol. 101, Issue 9 https://doi.org/10.1103/PhysRevLett.101.095001	journal	August 2008
Turbulent Transport of Trapped-Electron Modes in Collisionless Plasmas Xiao, Yong; Lin, Zhihong Physical Review Letters, Vol. 103, Issue 8 https://doi.org/10.1103/PhysRevLett.103.085004	journal	August 2009
Nonlinear Frequency Oscillation of Alfvén Eigenmodes in Fusion Plasmas Zhang, H. S.; Lin, Z.; Holod, I. Physical Review Letters, Vol. 109, Issue 2 https://doi.org/10.1103/PhysRevLett.109.025001	journal	July 2012
Radial Localization of Toroidicity-Induced Alfvén Eigenmodes Wang, Zhixuan; Lin, Zhihong; Holod, Ihor Physical Review Letters, Vol. 111, Issue 14 https://doi.org/10.1103/PhysRevLett.111.145003	journal	October 2013
Hamiltonian theory of guiding-center motion Cary, John R.; Brizard, Alain J. Reviews of Modern Physics, Vol. 81, Issue 2 https://doi.org/10.1103/RevModPhys.81.693	journal	May 2009
Gyrokinetic particle simulation of neoclassical transport Lin, Z.; Tang, W. M.; Lee, W. W. Physics of Plasmas, Vol. 2, Issue 8 https://doi.org/10.1063/1.871196	journal	August 1995
Neoclassical Transport in Enhanced Confinement Toroidal Plasmas Lin, Z.; Tang, W. M.; Lee, W. W. Physical Review Letters, Vol. 78, Issue 3 https://doi.org/10.1103/PhysRevLett.78.456	journal	January 1997
Helical temperature perturbations associated with tearing modes in tokamak plasmas Fitzpatrick, Richard Physics of Plasmas, Vol. 2, Issue 3 https://doi.org/10.1063/1.871434	journal	March 1995
The effect of magnetic islands on Ion Temperature Gradient turbulence driven transport Hill, P.; Hariri, F.; Ottaviani, M. Physics of Plasmas, Vol. 22, Issue 4 https://doi.org/10.1063/1.4919031	journal	April 2015
Influence of Energetic Ions on Tearing Modes Cai, Huishan; Wang, Shaojie; Xu, Yinfeng Physical Review Letters, Vol. 106, Issue 7 https://doi.org/10.1103/PhysRevLett.106.075002	journal	February 2011
The Theory of Toroidally Confined Plasmas White, Roscoe B. World Scientific https://doi.org/10.1142/p916	book	January 2014
Kinetic Effects on the Currents Determining The Stability of a Magnetic Island in Tokamaks Poli, E.; Bergmann, A.; Casson, F. J. Физика плазмы, Vol. 42, Issue 5 https://doi.org/10.7868/s0367292116050139	journal	January 2016
The non-linear evolution of the tearing mode in electromagnetic turbulence using gyrokinetic simulations Hornsby, William A.; Migliano, Pierluigi; Buchholz, Rico arXiv https://doi.org/10.48550/arxiv.1507.02841	preprint	January 2015

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Global gyrokinetic simulation of microturbulence with kinetic electrons in the presence of magnetic island in tokamak Fang, K. S.; Lin, Z. Physics of Plasmas, Vol. 26, Issue 5 https://doi.org/10.1063/1.5096962	journal	May 2019
Kinetic particle simulations in a global toroidal geometry De, S.; Singh, T.; Kuley, A. Physics of Plasmas, Vol. 26, Issue 8 https://doi.org/10.1063/1.5108684	journal	August 2019

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