Characterisation of the fast-ion edge resonant transport layer induced by 3D perturbative fields in the ASDEX Upgrade tokamak through full orbit simulations

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Characterisation of the fast-ion edge resonant transport layer induced by 3D perturbative fields in the ASDEX Upgrade tokamak through full orbit simulations. / Sanchis, L.; Garcia-Munoz, M.; Snicker, A.; Ryan, D. A.; Zarzoso, D.; Chen, L.; Galdon-Quiroga, J.; Nocente, M.; Rivero-Rodriguez, J. F.; Rodriguez-Ramos, M.; Suttrop, W.; Van Zeeland, M. A.; Viezzer, E.; Willensdorfer, M.; Zonca, F.

In: Plasma Physics and Controlled Fusion, Vol. 61, No. 1, 014038, 01.01.2019, p. 1-10.

Research output: Contribution to journalArticleScientificpeer-review

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Sanchis, L, Garcia-Munoz, M, Snicker, A, Ryan, DA, Zarzoso, D, Chen, L, Galdon-Quiroga, J, Nocente, M, Rivero-Rodriguez, JF, Rodriguez-Ramos, M, Suttrop, W, Van Zeeland, MA, Viezzer, E, Willensdorfer, M & Zonca, F 2019, 'Characterisation of the fast-ion edge resonant transport layer induced by 3D perturbative fields in the ASDEX Upgrade tokamak through full orbit simulations', Plasma Physics and Controlled Fusion, vol. 61, no. 1, 014038, pp. 1-10. https://doi.org/10.1088/1361-6587/aaef61

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Sanchis, L. ; Garcia-Munoz, M. ; Snicker, A. ; Ryan, D. A. ; Zarzoso, D. ; Chen, L. ; Galdon-Quiroga, J. ; Nocente, M. ; Rivero-Rodriguez, J. F. ; Rodriguez-Ramos, M. ; Suttrop, W. ; Van Zeeland, M. A. ; Viezzer, E. ; Willensdorfer, M. ; Zonca, F. / Characterisation of the fast-ion edge resonant transport layer induced by 3D perturbative fields in the ASDEX Upgrade tokamak through full orbit simulations. In: Plasma Physics and Controlled Fusion. 2019 ; Vol. 61, No. 1. pp. 1-10.

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@article{43aa62b927ff48b58cf975cc5e6c57e4,
title = "Characterisation of the fast-ion edge resonant transport layer induced by 3D perturbative fields in the ASDEX Upgrade tokamak through full orbit simulations",
abstract = "In recent experiments at the ASDEX Upgrade tokamak the existence of an Edge Resonant Transport Layer (ERTL) was revealed as the main transport mechanism responsible for the measured fast-ion losses in the presence of externally applied 3D fields. The Monte Carlo orbit-following code ASCOT was used to study the fast-ion transport including the plasma response calculated with MARS-F, reproducing a strong correlation of fast-ion losses with the poloidal mode spectra of the 3D fields. In this work, a description of the physics underlying the ERTL is presented by means of numerical simulations together with an analytical model and experimental measurements to validate the results. The degradation of fast-ion confinement is calculated in terms of the variation of the toroidal canonical momentum (δP φ). This analysis reveals resonant patterns at the plasma edge activated by 3D perturbations and emphasizes the relevance of nonlinear resonances. The impact of collisions and the radial electric field on the ERTL is analysed.",
keywords = "ASCOT, AUG, canonical angular momentum, fast-ion transport, magnetic perturbations, nonlinear resonances, tokamak",
author = "L. Sanchis and M. Garcia-Munoz and A. Snicker and Ryan, {D. A.} and D. Zarzoso and L. Chen and J. Galdon-Quiroga and M. Nocente and Rivero-Rodriguez, {J. F.} and M. Rodriguez-Ramos and W. Suttrop and {Van Zeeland}, {M. A.} and E. Viezzer and M. Willensdorfer and F. Zonca",
year = "2019",
month = "1",
day = "1",
doi = "10.1088/1361-6587/aaef61",
language = "English",
volume = "61",
pages = "1--10",
journal = "Plasma Physics and Controlled Fusion",
issn = "0741-3335",
number = "1",

}

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TY - JOUR

T1 - Characterisation of the fast-ion edge resonant transport layer induced by 3D perturbative fields in the ASDEX Upgrade tokamak through full orbit simulations

AU - Sanchis, L.

AU - Garcia-Munoz, M.

AU - Snicker, A.

AU - Ryan, D. A.

AU - Zarzoso, D.

AU - Chen, L.

AU - Galdon-Quiroga, J.

AU - Nocente, M.

AU - Rivero-Rodriguez, J. F.

AU - Rodriguez-Ramos, M.

AU - Suttrop, W.

AU - Van Zeeland, M. A.

AU - Viezzer, E.

AU - Willensdorfer, M.

AU - Zonca, F.

PY - 2019/1/1

Y1 - 2019/1/1

N2 - In recent experiments at the ASDEX Upgrade tokamak the existence of an Edge Resonant Transport Layer (ERTL) was revealed as the main transport mechanism responsible for the measured fast-ion losses in the presence of externally applied 3D fields. The Monte Carlo orbit-following code ASCOT was used to study the fast-ion transport including the plasma response calculated with MARS-F, reproducing a strong correlation of fast-ion losses with the poloidal mode spectra of the 3D fields. In this work, a description of the physics underlying the ERTL is presented by means of numerical simulations together with an analytical model and experimental measurements to validate the results. The degradation of fast-ion confinement is calculated in terms of the variation of the toroidal canonical momentum (δP φ). This analysis reveals resonant patterns at the plasma edge activated by 3D perturbations and emphasizes the relevance of nonlinear resonances. The impact of collisions and the radial electric field on the ERTL is analysed.

AB - In recent experiments at the ASDEX Upgrade tokamak the existence of an Edge Resonant Transport Layer (ERTL) was revealed as the main transport mechanism responsible for the measured fast-ion losses in the presence of externally applied 3D fields. The Monte Carlo orbit-following code ASCOT was used to study the fast-ion transport including the plasma response calculated with MARS-F, reproducing a strong correlation of fast-ion losses with the poloidal mode spectra of the 3D fields. In this work, a description of the physics underlying the ERTL is presented by means of numerical simulations together with an analytical model and experimental measurements to validate the results. The degradation of fast-ion confinement is calculated in terms of the variation of the toroidal canonical momentum (δP φ). This analysis reveals resonant patterns at the plasma edge activated by 3D perturbations and emphasizes the relevance of nonlinear resonances. The impact of collisions and the radial electric field on the ERTL is analysed.

KW - ASCOT

KW - AUG

KW - canonical angular momentum

KW - fast-ion transport

KW - magnetic perturbations

KW - nonlinear resonances

KW - tokamak

UR - http://www.scopus.com/inward/record.url?scp=85057588344&partnerID=8YFLogxK

U2 - 10.1088/1361-6587/aaef61

DO - 10.1088/1361-6587/aaef61

M3 - Article

VL - 61

SP - 1

EP - 10

JO - Plasma Physics and Controlled Fusion

JF - Plasma Physics and Controlled Fusion

SN - 0741-3335

IS - 1

M1 - 014038

ER -

ID: 30559678