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

Journal Article · Sun Jan 01 00:00:00 EST 2012 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4718316· OSTI ID:1050411

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

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1. College of William and Mary, Williamsburg, VA
2. University of California, Los Angeles
3. University of Wisconsin, Madison
4. University of California, San Diego
5. ORNL
6. Lawrence Livermore National Laboratory (LLNL)
7. University of Texas, Austin
8. Columbia University
9. Forschungszentrum Julich, Julich, Germany
10. Princeton Plasma Physics Laboratory (PPPL)
11. General Atomics

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 x 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.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 1050411
• Journal Information: Physics of Plasmas, Vol. 19, Issue 5; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DOUBLET-3 DEVICE
FLUCTUATIONS
SHEAR
TRANSPORT