Influence of toroidal field ripple and resonant magnetic perturbations on global 13C transport in ASDEX Upgrade

J. Miettunen; M. I. Airila; M. Groth; V. Lindholm; T. Makkonen; S. Äkäslompolo

doi:10.1016/j.jnucmat.2014.10.095

Influence of toroidal field ripple and resonant magnetic perturbations on global ¹³C transport in ASDEX Upgrade

J. Miettunen, M. I. Airila, M. Groth, V. Lindholm, T. Makkonen, S. Äkäslompolo

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

Abstract

Abstract In this study, 3D orbit-following simulations with the ASCOT code of a tracer injection experiment on ASDEX Upgrade (AUG) are carried out to investigate the influence of toroidal field (TF) ripple and resonant magnetic perturbations (RMPs) on global ¹³C transport in the scrape-off layer (SOL). The conducted ASCOT simulations predict ripple to induce toroidal periodicity into the ¹³C deposition pattern. For resonant magnetic perturbations, the deposition pattern was observed to be locally influenced in the vicinity of the in-vessel coils creating the perturbations. In both cases, however, the global large-scale deposition of ¹³C remained unchanged compared to the case of an axisymmetric magnetic field.

Original language	English
Article number	48592
Pages (from-to)	459-462
Number of pages	4
Journal	Journal of Nuclear Materials
Volume	463
DOIs	https://doi.org/10.1016/j.jnucmat.2014.10.095
Publication status	Published - 22 Jul 2015
MoE publication type	A1 Journal article-refereed

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10.1016/j.jnucmat.2014.10.095

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Miettunen, J., Airila, M. I., Groth, M., Lindholm, V., Makkonen, T., & Äkäslompolo, S. (2015). Influence of toroidal field ripple and resonant magnetic perturbations on global ¹³C transport in ASDEX Upgrade. Journal of Nuclear Materials, 463, 459-462. [48592]. https://doi.org/10.1016/j.jnucmat.2014.10.095

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abstract = "Abstract In this study, 3D orbit-following simulations with the ASCOT code of a tracer injection experiment on ASDEX Upgrade (AUG) are carried out to investigate the influence of toroidal field (TF) ripple and resonant magnetic perturbations (RMPs) on global 13C transport in the scrape-off layer (SOL). The conducted ASCOT simulations predict ripple to induce toroidal periodicity into the 13C deposition pattern. For resonant magnetic perturbations, the deposition pattern was observed to be locally influenced in the vicinity of the in-vessel coils creating the perturbations. In both cases, however, the global large-scale deposition of 13C remained unchanged compared to the case of an axisymmetric magnetic field.",

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AU - Lindholm, V.

AU - Makkonen, T.

AU - Äkäslompolo, S.

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N2 - Abstract In this study, 3D orbit-following simulations with the ASCOT code of a tracer injection experiment on ASDEX Upgrade (AUG) are carried out to investigate the influence of toroidal field (TF) ripple and resonant magnetic perturbations (RMPs) on global 13C transport in the scrape-off layer (SOL). The conducted ASCOT simulations predict ripple to induce toroidal periodicity into the 13C deposition pattern. For resonant magnetic perturbations, the deposition pattern was observed to be locally influenced in the vicinity of the in-vessel coils creating the perturbations. In both cases, however, the global large-scale deposition of 13C remained unchanged compared to the case of an axisymmetric magnetic field.

AB - Abstract In this study, 3D orbit-following simulations with the ASCOT code of a tracer injection experiment on ASDEX Upgrade (AUG) are carried out to investigate the influence of toroidal field (TF) ripple and resonant magnetic perturbations (RMPs) on global 13C transport in the scrape-off layer (SOL). The conducted ASCOT simulations predict ripple to induce toroidal periodicity into the 13C deposition pattern. For resonant magnetic perturbations, the deposition pattern was observed to be locally influenced in the vicinity of the in-vessel coils creating the perturbations. In both cases, however, the global large-scale deposition of 13C remained unchanged compared to the case of an axisymmetric magnetic field.

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