Beam-Ion Acceleration during Edge Localized Modes in the ASDEX Upgrade Tokamak
| العنوان: | Beam-Ion Acceleration during Edge Localized Modes in the ASDEX Upgrade Tokamak |
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| المؤلفون: | M. Garcia-Munoz, J. F. Rivero-Rodriguez, W. Suttrop, Mirko Salewski, A. S. Jacobsen, J. Galdon-Quiroga, L. Sanchis-Sanchez, Matthias Hoelzl, K. G. McClements, F. Orain, EUROfusion Mst Team, Massimo Nocente, E. Viezzer |
| المساهمون: | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, Universidad de Sevilla. Departamento de Ingeniería Mecánica y Fabricación, European Union (UE). H2020, Ministerio de Economía y Competitividad (MINECO). España, Universidad de Sevilla. RNM138: Física Nuclear Aplicada, Universidad de Sevilla. TEP111: Ingeniería Mecánica, ASDEX Upgrade Team, Max Planck Institute for Plasma Physics, Max Planck Society, Eurofusion MST1 Team, European Commission, Ministerio de Economía y Competitividad (España), García-Muñoz, M., Salewski, M., Viezzer, Eleonora, Galdon-Quiroga, J, Garcia-Munoz, M, Mcclements, K, Nocente, M, Hoelzl, M, Jacobsen, A, Orain, F, Rivero-Rodriguez, J, Salewski, M, Sanchis-Sanchez, L, Suttrop, W, Viezzer, E, García-Muñoz, M. [0000-0002-3241-502X], Salewski, M. [0000-0002-3699-679X], Viezzer, Eleonora [0000-0001-6419-6848] |
| المصدر: | idUS. Depósito de Investigación de la Universidad de Sevilla instname idUS: Depósito de Investigación de la Universidad de Sevilla Universidad de Sevilla (US) Physical Review Letters Galdon-Quiroga, J, Garcia-Munoz, M, McClements, K G, Nocente, M, Hoelzl, M, Jacobsen, A S, Orain, F, Rivero-Rodriguez, J F, Salewski, M, Sanchis-Sanchez, L, Suttrop, W & Viezzer, E 2018, ' Beam-Ion Acceleration during Edge Localized Modes in the ASDEX Upgrade Tokamak ', Physical Review Letters, vol. 121, no. 2, 025002 . https://doi.org/10.1103/PhysRevLett.121.025002 Digital.CSIC. Repositorio Institucional del CSIC |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | Physics, education.field_of_study, Tokamak, Population, General Physics and Astronomy, Magnetically confined plasmas, energetic ions, edge localised modes, Plasma, Collisionality, Kinetic energy, 01 natural sciences, 010305 fluids & plasmas, law.invention, Computational physics, Ion, Particle acceleration, ASDEX Upgrade, law, Physics::Plasma Physics, 0103 physical sciences, Physics::Accelerator Physics, 010306 general physics, education |
| الوصف: | The acceleration of beam ions during edge localized modes (ELMs) in a tokamak is observed for the first time through direct measurements of fast-ion losses in low collisionality plasmas. The accelerated beam-ion population exhibits well-localized velocity-space structures which are revealed by means of tomographic inversion of the measurement, showing energy gains of the order of tens of keV. This suggests that the ion acceleration results from a resonant interaction between the beam ions and parallel electric fields arising during the ELM. Orbit simulations are carried out to identify the mode-particle resonances responsible for the energy gain in the particle phase space. The observation motivates the incorporation of a kinetic description of fast particles in ELM models and may contribute to a better understanding of the mechanisms responsible for particle acceleration, ubiquitous in astrophysical and space plasmas. This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training program under Grant Agreement No. 633053. The views and opinions expressed herein do not necessarily reflect those of the European Commission. The support from the H2020 MarieSklodowska Curie programme (Grant No. 708257) and the Spanish Ministry of Economy and Competitiveness (Grants No. RYC-2011-09152, No. FIS2015-69362-P, No. FJCI-201422139) is gratefully acknowledged |
| وصف الملف: | application/pdf |
| تدمد: | 1079-7114 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::748d629dfdd6bd1b52ec974846bfcc0b https://pubmed.ncbi.nlm.nih.gov/30085760 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....748d629dfdd6bd1b52ec974846bfcc0b |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 10797114 |
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