Modulation of core turbulent density fluctuations by large-scale neoclassical tearing mode islands in the DIII-D tokamak
Abstract
We report the first observation of localized modulation of turbulent density uctuations en (via Beam Emission Spectroscopy) by neoclassical tearing modes (NTMs) in the core of the DIII-D tokamak. NTMs are important as they often lead to severe degradation of plasma confinement and disruptions in high-confinement fusion experiments. Magnetic islands associated with NTMs significantly modify the profiles and turbulence drives. In this experiment n was found to be modulated by 14% across the island. Gyrokinetic simulations suggest that en could be dominantly driven by the ion temperature gradient (ITG) instability.
- Authors:
-
- Univ. of California, Los Angeles, CA (United States)
- Univ. of Wisconsin, Madison, WI (United States)
- Publication Date:
- Research Org.:
- General Atomics, San Diego, CA (United States)
- Sponsoring Org.:
- USDOE
- Contributing Org.:
- University of California Los Angeles, Los Angeles, California 90095, USA University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
- OSTI Identifier:
- 1371729
- Alternate Identifier(s):
- OSTI ID: 1254539; OSTI ID: 1371728
- Grant/Contract Number:
- FC02-04ER54698; FG02-08ER54984; FG03-86ER53266; AC02-05CH11231
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 116; Journal Issue: 21; Related Information: L. Bardoczi, T.L. Rhode, T.A. Carter, A. Banon Navarro, W.A. Peebles, F. Jenko, and G. McKee "Modulation of Core Turbulent Density Fluctuations by Large-Scale Neoclassical Tearing ode Islands in the DIII-D Tokamak", Phys. Rev. Lets 116, 215001; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Citation Formats
Bardoczi, L., Rhodes, T. L., Carter, T. A., Navarro, A. Banon, Peebles, W. A., Jenko, F., and McKee, G. Modulation of core turbulent density fluctuations by large-scale neoclassical tearing mode islands in the DIII-D tokamak. United States: N. p., 2016.
Web. doi:10.1103/PhysRevLett.116.215001.
Bardoczi, L., Rhodes, T. L., Carter, T. A., Navarro, A. Banon, Peebles, W. A., Jenko, F., & McKee, G. Modulation of core turbulent density fluctuations by large-scale neoclassical tearing mode islands in the DIII-D tokamak. United States. https://doi.org/10.1103/PhysRevLett.116.215001
Bardoczi, L., Rhodes, T. L., Carter, T. A., Navarro, A. Banon, Peebles, W. A., Jenko, F., and McKee, G. Thu .
"Modulation of core turbulent density fluctuations by large-scale neoclassical tearing mode islands in the DIII-D tokamak". United States. https://doi.org/10.1103/PhysRevLett.116.215001. https://www.osti.gov/servlets/purl/1371729.
@article{osti_1371729,
title = {Modulation of core turbulent density fluctuations by large-scale neoclassical tearing mode islands in the DIII-D tokamak},
author = {Bardoczi, L. and Rhodes, T. L. and Carter, T. A. and Navarro, A. Banon and Peebles, W. A. and Jenko, F. and McKee, G.},
abstractNote = {We report the first observation of localized modulation of turbulent density uctuations en (via Beam Emission Spectroscopy) by neoclassical tearing modes (NTMs) in the core of the DIII-D tokamak. NTMs are important as they often lead to severe degradation of plasma confinement and disruptions in high-confinement fusion experiments. Magnetic islands associated with NTMs significantly modify the profiles and turbulence drives. In this experiment n was found to be modulated by 14% across the island. Gyrokinetic simulations suggest that en could be dominantly driven by the ion temperature gradient (ITG) instability.},
doi = {10.1103/PhysRevLett.116.215001},
journal = {Physical Review Letters},
number = 21,
volume = 116,
place = {United States},
year = {Thu May 26 00:00:00 EDT 2016},
month = {Thu May 26 00:00:00 EDT 2016}
}
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Works referenced in this record:
The beam emission spectroscopy diagnostic on the DIII-D tokamak
journal, January 1999
- McKee, G.; Ashley, R.; Durst, R.
- Review of Scientific Instruments, Vol. 70, Issue 1
Fiber optic two-color vibration compensated interferometer for plasma density measurements
journal, October 2006
- Van Zeeland, M. A.; Boivin, R. L.; Carlstrom, T. N.
- Review of Scientific Instruments, Vol. 77, Issue 10
The role of asymmetries in the growth and suppression of neoclassical tearing modes
journal, February 2011
- De Lazzari, D.; Westerhof, E.
- Plasma Physics and Controlled Fusion, Vol. 53, Issue 3
Behaviour of turbulent transport in the vicinity of a magnetic island
journal, May 2009
- Poli, E.; Bottino, A.; Peeters, A. G.
- Nuclear Fusion, Vol. 49, Issue 7
On seed island generation and the non-linear self-consistent interaction of the tearing mode With electromagnetic gyro-kinetic turbulence
journal, April 2015
- Hornsby, W. A.; Migliano, P.; Buchholz, R.
- Plasma Physics and Controlled Fusion, Vol. 57, Issue 5
Electron cyclotron emission radiometer upgrade on the DIII-D tokamak
journal, March 2003
- Austin, M. E.; Lohr, J.
- Review of Scientific Instruments, Vol. 74, Issue 3
Non-perturbative measurement of cross-field thermal diffusivity reduction at the O-point of 2/1 neoclassical tearing mode islands in the DIII-D tokamak
journal, May 2016
- Bardóczi, L.; Rhodes, T. L.; Carter, T. A.
- Physics of Plasmas, Vol. 23, Issue 5
Helical temperature perturbations associated with tearing modes in tokamak plasmas
journal, March 1995
- Fitzpatrick, Richard
- Physics of Plasmas, Vol. 2, Issue 3
Plasma flows and fluctuations with magnetic islands in the edge plasmas of J-TEXT tokamak
journal, June 2015
- Zhao, K. J.; Shi, Y. J.; Hahn, S. H.
- Nuclear Fusion, Vol. 55, Issue 7
Design and operation of the multipulse Thomson scattering diagnostic on DIII‐D (invited)
journal, October 1992
- Carlstrom, T. N.; Campbell, G. L.; DeBoo, J. C.
- Review of Scientific Instruments, Vol. 63, Issue 10
The nonlinear coupling between gyroradius scale turbulence and mesoscale magnetic islands in fusion plasmas
journal, September 2010
- Hornsby, W. A.; Peeters, A. G.; Snodin, A. P.
- Physics of Plasmas, Vol. 17, Issue 9
Magnetic reconnection
journal, March 2010
- Yamada, Masaaki; Kulsrud, Russell; Ji, Hantao
- Reviews of Modern Physics, Vol. 82, Issue 1
Improved charge-coupled device detectors for high-speed, charge exchange spectroscopy studies on the DIII-D tokamak
journal, October 2004
- Burrell, K. H.; Gohil, P.; Groebner, R. J.
- Review of Scientific Instruments, Vol. 75, Issue 10
Interaction of turbulence with magnetic islands: effect on bootstrap current
journal, April 2011
- Hornsby, W. A.; Siccinio, M.; Peeters, A. G.
- Plasma Physics and Controlled Fusion, Vol. 53, Issue 5
The influence of finite radial transport on the structure and evolution of m / n = 2/1 neoclassical tearing modes on MAST
journal, May 2012
- Snape, J. A.; Gibson, K. J.; O'Gorman, T.
- Plasma Physics and Controlled Fusion, Vol. 54, Issue 8
Electron temperature gradient driven turbulence
journal, May 2000
- Jenko, F.; Dorland, W.; Kotschenreuther, M.
- Physics of Plasmas, Vol. 7, Issue 5
Millimeter-wave backscatter diagnostic for the study of short scale length plasma fluctuations (invited)
journal, October 2006
- Rhodes, T. L.; Peebles, W. A.; Nguyen, X.
- Review of Scientific Instruments, Vol. 77, Issue 10
The influence of magnetic islands on drift mode stability in magnetized plasma
journal, October 2009
- Wilson, H. R.; Connor, J. W.
- Plasma Physics and Controlled Fusion, Vol. 51, Issue 11
Testing instabilities and microturbulence in TEXT
journal, September 1992
- Yu, C.; Brower, D. L.; Zhao, S.
- Nuclear Fusion, Vol. 32, Issue 9
Island bootstrap current modification of the nonlinear dynamics of the tearing mode
journal, January 1986
- Carrera, R.; Hazeltine, R. D.; Kotschenreuther, M.
- Physics of Fluids, Vol. 29, Issue 4
Magnetic reconnection
journal, January 1984
- Hones, Edward W.
- Eos, Transactions American Geophysical Union, Vol. 65, Issue 13
Works referencing / citing this record:
Non-perturbative measurement of cross-field thermal diffusivity reduction at the O-point of 2/1 neoclassical tearing mode islands in the DIII-D tokamak
journal, May 2016
- Bardóczi, L.; Rhodes, T. L.; Carter, T. A.
- Physics of Plasmas, Vol. 23, Issue 5
Multi-field/-scale interactions of turbulence with neoclassical tearing mode magnetic islands in the DIII-D tokamak
journal, May 2017
- Bardóczi, L.; Rhodes, T. L.; Bañón Navarro, A.
- Physics of Plasmas, Vol. 24, Issue 5
Nonlinear dynamics of turbulence driven magnetic islands. II. Numerical simulations
journal, April 2017
- Agullo, O.; Muraglia, M.; Benkadda, S.
- Physics of Plasmas, Vol. 24, Issue 4
Impact of neoclassical tearing mode–turbulence multi-scale interaction in global confinement degradation and magnetic island stability
journal, December 2017
- Bardóczi, L.; Carter, T. A.; La Haye, R. J.
- Physics of Plasmas, Vol. 24, Issue 12
Electron thermal confinement in a partially stochastic magnetic structure
journal, April 2018
- Morton, L. A.; Young, W. C.; Hegna, C. C.
- Physics of Plasmas, Vol. 25, Issue 4
A neoclassical drift-magnetohydrodynamical fluid model of the interaction of a magnetic island chain with a resonant error-field in a high temperature tokamak plasma
journal, April 2018
- Fitzpatrick, Richard
- Physics of Plasmas, Vol. 25, Issue 4
Gyrokinetic simulation study of magnetic island effects on neoclassical physics and micro-instabilities in a realistic KSTAR plasma
journal, May 2018
- Kwon, Jae-Min; Ku, S.; Choi, M. J.
- Physics of Plasmas, Vol. 25, Issue 5
Measurement of electron temperature fluctuations on J-TEXT via correlation ECE
journal, October 2018
- Zhou, H.; Yang, Z. J.; Xie, X. L.
- Review of Scientific Instruments, Vol. 89, Issue 10
Experimental study of quasi-coherent mode using EAST tangential CO 2 laser collective scattering diagnostic in far-forward mode
journal, January 2019
- Sun, P. J.; Li, Y. D.; Ren, Y.
- Physics of Plasmas, Vol. 26, Issue 1
Loss of bootstrap current in vicinity of magnetic islands
journal, May 2019
- Wang, Feng; Li, Jiquan; Qu, Hongpeng
- Physics of Plasmas, Vol. 26, Issue 5
Effect of magnetic islands on profiles, flows, turbulence and transport in nonlinear gyrokinetic simulations
journal, February 2017
- Navarro, A. Bañón; Bardóczi, L.; Carter, T. A.
- Plasma Physics and Controlled Fusion, Vol. 59, Issue 3
Internal transport barrier in tokamak and helical plasmas
journal, January 2018
- Ida, K.; Fujita, T.
- Plasma Physics and Controlled Fusion, Vol. 60, Issue 3
Multi-scale interactions between turbulence and magnetic islands and parity mixture—a review
journal, March 2019
- Ishizawa, A.; Kishimoto, Y.; Nakamura, Y.
- Plasma Physics and Controlled Fusion, Vol. 61, Issue 5
Interaction of magnetic islands with turbulent electron temperature fluctuations in DIII-D and in GENE nonlinear gyrokinetic simulations
journal, December 2019
- Bardóczi, L.; Sung, C.; Navarro, A. Bañón
- Plasma Physics and Controlled Fusion, Vol. 62, Issue 2
Effects of magnetic islands on bootstrap current in toroidal plasmas
journal, December 2016
- Dong, G.; Lin, Z.
- Nuclear Fusion, Vol. 57, Issue 3
Temporal-spatial structures of plasmas flows and turbulence around tearing mode islands in the edge tokamak plasmas
journal, September 2017
- Zhao, K. J.; Nagashima, Y.; Li, F. M.
- Nuclear Fusion, Vol. 57, Issue 12
Experimental identification of nonlinear coupling between (intermediate, small)-scale microturbulence and an MHD mode in the core of a superconducting tokamak
journal, November 2017
- Sun, P. J.; Li, Y. D.; Ren, Y.
- Nuclear Fusion, Vol. 58, Issue 1
Influence of m / n = 2/1 magnetic islands on perpendicular flows and turbulence in HL-2A Ohmic plasmas
journal, December 2017
- Jiang, M.; Zhong, W. L.; Xu, Y.
- Nuclear Fusion, Vol. 58, Issue 2
A novel approach to studying transport in plasmas with magnetic islands
journal, July 2018
- Auriemma, F.; López-Bruna, D.; Lorenzini, R.
- Nuclear Fusion, Vol. 58, Issue 9
A mechanism of neoclassical tearing modes onset by drift wave turbulence
journal, December 2018
- Cai, Huishan
- Nuclear Fusion, Vol. 59, Issue 2
Influence of resonant magnetic perturbations and induced islands on plasma rotations and turbulence properties in the J-TEXT tokamak
journal, January 2019
- Jiang, M.; Xu, Y.; Zhong, W. L.
- Nuclear Fusion, Vol. 59, Issue 4
Multi-scale interaction of pedestal instabilities in H-mode plasma on the EAST tokamak
journal, April 2019
- Zhang, T.; Geng, K. N.; Liu, H. Q.
- Nuclear Fusion, Vol. 59, Issue 5
Overview of HL-2A recent experiments
journal, July 2019
- Xu, M.; Duan, X. R.; Liu, Yi
- Nuclear Fusion, Vol. 59, Issue 11
Non-linear simulations of neoclassical tearing mode control by externally driven RF current and heating, with application to ITER
journal, August 2019
- Widmer, Fabien; Maget, Patrick; Février, Olivier
- Nuclear Fusion, Vol. 59, Issue 10
Controlled neoclassical tearing mode (NTM) healing by fueling pellets and its impact on electron cyclotron current drive requirements for complete NTM stabilization
journal, October 2019
- Bardóczi, L.; Choi, M. J.; Bañón Navarro, A.
- Nuclear Fusion, Vol. 59, Issue 12