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

S. Mordijck; E. J. Doyle; G. R. McKee; R. A. Moyer; T. L. Rhodes; L. Zeng; N. Commaux; M. E. Fenstermacher; K. W. Gentle; H. Reimerdes; O. Schmitz; W. M. Solomon; G. M. Staebler; G. Wang

doi:10.1063/1.4718316

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

S. Mordijck, E. J. Doyle, G. R. McKee, R. A. Moyer, T. L. Rhodes, L. Zeng, N. Commaux, M. E. Fenstermacher, K. W. Gentle, H. Reimerdes, O. Schmitz, W. M. Solomon, G. M. Staebler, G. Wang

Research output: Contribution to journal › Article › peer-review

37 Scopus citations

Abstract

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 × 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.

Original language	English
Article number	056503
Journal	Physics of Plasmas
Volume	19
Issue number	5
DOIs	https://doi.org/10.1063/1.4718316
State	Published - May 2012
Externally published	Yes

Funding

This work was supported in part by the U.S. Department of Energy under DE-FG02-07ER54917, DE-FC02-04ER54698, DE-FG02-89ER54139, DE-FG02-08ER54999, DE-AC05-00OR22725, DE-AC52-07NA27344, DE-FG03-97ER54415, DE-FG02-04ER54761, DE-AC02-09CH11466, and DE-FG02-95ER54309. Special thanks to Pieter Peers.

Funders	Funder number
U.S. Department of Energy	DE-AC05-00OR22725, DE-FG03-97ER54415, DE-FG02-08ER54999, DE-FG02-04ER54761, DE-FG02-89ER54139, DE-AC02-09CH11466, DE-FC02-04ER54698, DE-AC52-07NA27344, DE-FG02-07ER54917, DE-FG02-95ER54309

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Mordijck, S., Doyle, E. J., McKee, G. R., Moyer, R. A., Rhodes, T. L., Zeng, L., Commaux, N., Fenstermacher, M. E., Gentle, K. W., Reimerdes, H., Schmitz, O., Solomon, W. M., Staebler, G. M., & Wang, G. (2012). Changes in particle transport as a result of resonant magnetic perturbations in DIII-D. Physics of Plasmas, 19(5), Article 056503. https://doi.org/10.1063/1.4718316

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abstract = "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 × 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.",

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AU - Doyle, E. J.

AU - McKee, G. R.

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AU - Rhodes, T. L.

AU - Zeng, L.

AU - Commaux, N.

AU - Fenstermacher, M. E.

AU - Gentle, K. W.

AU - Reimerdes, H.

AU - Schmitz, O.

AU - Solomon, W. M.

AU - Staebler, G. M.

AU - Wang, G.

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

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