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**Harvard**

Li, L., Liu, Y., Wang, N., Kirk, A., Koslowski, H., Liang, Y., Loarte, A., Ryan, D. och Zhong, F. (2017) *Toroidal modeling of plasma response to RMP fields in ITER*.

** BibTeX **

@article{

Li2017,

author={Li, L. and Liu, Yueqiang and Wang, N. and Kirk, A. and Koslowski, H. R. and Liang, Y. and Loarte, A. and Ryan, D. and Zhong, F. C.},

title={Toroidal modeling of plasma response to RMP fields in ITER},

journal={Plasma Physics and Controlled Fusion},

issn={0741-3335},

volume={59},

issue={4},

abstract={A systematic numerical study is carried out, computing the resistive plasma response to the resonant magnetic perturbation (RMP) fields for ITER plasmas, utilizing the toroidal code MARS-F (Liu et al 2000 Phys. Plasmas 7 3681). A number of factors are taken into account, including the variation of the plasma scenarios (from 15 MA Q = 10 inductive scenario to the 9 MA Q = 5 steady state scenario), the variation of the toroidal spectrum of the applied fields (n = 1, 2, 3, 4, with n being the toroidal mode number), the amplitude and phase variation of the currents in three rows of the RMP coils as designed for ITER, and finally a special case of mixed toroidal spectrum between the n = 3 and n = 4 RMP fields. Two-dimensional parameter scans, for the edge safety factor and the coil phasing between the upper and lower rows of coils, yield 'optimal' curves that maximize a set of figures of merit, that are defined in this work to measure the plasma response. Other two-dimensional scans of the relative coil current phasing among three rows of coils, at fixed coil currents amplitude, reveal a single optimum for each coil configuration with a given n number, for the 15 MA ITER inductive plasma. On the other hand, scanning of the coil current amplitude, at fixed coil phasing, shows either synergy or cancellation effect, for the field contributions between the off-middle rows and the middle row of the RMP coils. Finally, the mixed toroidal spectrum, by combining the n = 3 and the n = 4 RMP field, results in a substantial local reduction of the amplitude of the plasma surface displacement.},

year={2017},

keywords={RMP fields, plasma response, ELM control, ITER},

}

** RefWorks **

RT Journal Article

SR Electronic

ID 249020

A1 Li, L.

A1 Liu, Yueqiang

A1 Wang, N.

A1 Kirk, A.

A1 Koslowski, H. R.

A1 Liang, Y.

A1 Loarte, A.

A1 Ryan, D.

A1 Zhong, F. C.

T1 Toroidal modeling of plasma response to RMP fields in ITER

YR 2017

JF Plasma Physics and Controlled Fusion

SN 0741-3335

VO 59

IS 4

AB A systematic numerical study is carried out, computing the resistive plasma response to the resonant magnetic perturbation (RMP) fields for ITER plasmas, utilizing the toroidal code MARS-F (Liu et al 2000 Phys. Plasmas 7 3681). A number of factors are taken into account, including the variation of the plasma scenarios (from 15 MA Q = 10 inductive scenario to the 9 MA Q = 5 steady state scenario), the variation of the toroidal spectrum of the applied fields (n = 1, 2, 3, 4, with n being the toroidal mode number), the amplitude and phase variation of the currents in three rows of the RMP coils as designed for ITER, and finally a special case of mixed toroidal spectrum between the n = 3 and n = 4 RMP fields. Two-dimensional parameter scans, for the edge safety factor and the coil phasing between the upper and lower rows of coils, yield 'optimal' curves that maximize a set of figures of merit, that are defined in this work to measure the plasma response. Other two-dimensional scans of the relative coil current phasing among three rows of coils, at fixed coil currents amplitude, reveal a single optimum for each coil configuration with a given n number, for the 15 MA ITER inductive plasma. On the other hand, scanning of the coil current amplitude, at fixed coil phasing, shows either synergy or cancellation effect, for the field contributions between the off-middle rows and the middle row of the RMP coils. Finally, the mixed toroidal spectrum, by combining the n = 3 and the n = 4 RMP field, results in a substantial local reduction of the amplitude of the plasma surface displacement.

LA eng

DO 10.1088/1361-6587/aa5769

LK http://dx.doi.org/10.1088/1361-6587/aa5769

OL 30