Changes in particle transport as a result of resonant magnetic perturbations in DIII-D

Journal Article · Tue May 15 00:00:00 EDT 2012 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4718316· OSTI ID:22072425

Mordijck, S ^[1]; Doyle, E J; Rhodes, T L; Zeng, L; Wang, G ^[2]; McKee, G R ^[3]; Moyer, R A ^[4]; Commaux, N ^[5]; Fenstermacher, M E ^[6]; Gentle, K W ^[7]; Reimerdes, H ^[8]; Schmitz, O ^[9]; Solomon, W M ^[10]; Staebler, G M ^[11]

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1. Department of Computer Science, College of William and Mary, Williamsburg, Virginia 23187 (United States)
2. Department of Physics and Astronomy, University of California-Los Angeles, Los Angeles, California 90095 (United States)
3. Department of Engineering, University of Wisconsin, Madison, Wisconsin 53706 (United States)
4. Department of Mechanical and Aerospace Engineering, University of California, San Diego, La Jolla, California 92093 (United States)
5. Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)
6. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
7. Fusion Research Center, University of Texas at Austin, Austin, Texas 78712 (United States)
8. Columbia University, New York, New York 10027 (United States)
9. Institut fuer Energieforschung-Plasmaphysik, Forschungszentrum Juelich GmbH, Association EURATOM-FZJ, Trilateral Euregio Cluster, 52425 Juelich (Germany)
10. Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States)
11. General Atomics, P.O. Box 85608, San Diego, California 92186-5608 (United States)

In this paper, we introduce the first direct perturbed particle transport measurements in resonant magnetic perturbation (RMP) H-mode plasmas. The perturbed particle transport increases as a result of application of RMP deep into the core. In the core, a large reduction in E Multiplication-Sign B shear to a value below the linear growth rate, in conjunction with increasing density fluctuations, is consistent with an increase in turbulent particle transport. In the edge, the changes in turbulent particle transport are less obvious. There is a clear correlation between the linear growth rates and the density fluctuations measured at different scales, but it is uncertain which is the cause and which is the consequence.

• OSTI ID: 22072425
• Journal Information: Physics of Plasmas, Vol. 19, Issue 5; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DISTURBANCES
DOUBLET-3 DEVICE
ELECTRIC FIELDS
H-MODE PLASMA CONFINEMENT
MAGNETIC FIELDS
NEUTRAL-PARTICLE TRANSPORT
PLASMA
RESONANCE
SHEAR