Zobrazeno 1 - 10 of 92 pro vyhledávání: '"Gregorio Vlad"'
1
Excitation of toroidal Alfvén eigenmode by barely circulating energetic electrons in low density plasmas
Autor: Tao Wang, Xiang Zhu, Long Zeng, Sergio Briguglio, Gregorio Vlad, Fulvio Zonca, Zhiyong Qiu
Publikováno v: Plasma Physics and Controlled Fusion. 65:055026
Toroidal Alfvén eigenmodes (TAEs) associated with runaway electrons are observed in low density EAST Ohmic discharges (Zhu et al 2022 Phys. Plasmas 29 062504), which motivate the present work to explore the possible destabilization mechanism using s
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ecb85424875d170cdf74144413e494fd
https://doi.org/10.1088/1361-6587/acc6ee
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2
A linear benchmark between HYMAGYC, MEGA and ORB5 codes using the NLED-AUG test case to study Alfvénic modes driven by energetic particles
Autor: F. Vannini, Alberto Bottino, M. V. Falessi, Alessandro Biancalani, Gregorio Vlad, Sergio Briguglio, V. Fusco, Philipp Lauber, Fulvio Zonca, N. Carlevaro, T. Hayward-Schneider, Giuliana Fogaccia, Xin Wang
Publikováno v: Nuclear Fusion
One of the major challenges in magnetic confinement thermonuclear fusion research concerns the confinement of the energetic particles (EPs) produced by fusion reactions and/or by additional heating systems. In such experiments, EPs can resonantly int
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37dd697451cf1715d8980eda790963eb
http://hdl.handle.net/20.500.12079/60986
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3
Gyrokinetic investigation of the nonlinear interaction of Alfvén instabilities and energetic particle-driven geodesic acoustic modes
Autor: T. Hayward-Schneider, Alberto Bottino, Emanuele Poli, F. Vannini, Gregorio Vlad, Ph. Lauber, Alexey Mishchenko, Alessandro Biancalani
Publikováno v: Physics of Plasmas
Scopus-Elsevier
47th EPS Conference on Plasma Physics
Europhysics Conference Abstracts (ECA)
This paper presents a study of the interaction between Alfvén modes and zonal structures, considering a realistic ASDEX Upgrade equilibrium. The results of gyrokinetic simulations with the global, electromagnetic, particle-in-cell code ORB5 are pres
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13e087e1040621ac766977fcc592ba39
https://hdl.handle.net/21.11116/0000-0008-DB94-A21.11116/0000-0008-ED04-9
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4
Collisionless losses of fast ions in the divertor tokamak test due to toroidal field ripple
Autor: Piero Agostinetti, Gustavo Granucci, Marco Cecconello, P. Vincenzi, Raffaele Albanese, Gregorio Vlad, Roscoe White, P. Mantica, M. V. Falessi, Roberto Ambrosino, M. Vallar, I. Casiraghi, Fulvio Zonca, Marco Gobbin, Gianluca Spizzo, Piero Martin
Publikováno v: Nuclear fusion (Online) 61 (2021): 116016-1–116016-13. doi:10.1088/1741-4326/ac1e08
info:cnr-pdr/source/autori:Spizzo G.; Gobbin M.; Agostinetti P.; Albanese R.; Ambrosino R.; Casiraghi I.; Cecconello M.; Falessi M.V.; Granucci G.; Mantica P.; Martin P.; Vallar M.; Vincenzi P.; Vlad G.; White R.B.; Zonca F./titolo:Collisionless losses of fast ions in the divertor tokamak test due to toroidal field ripple/doi:10.1088%2F1741-4326%2Fac1e08/rivista:Nuclear fusion (Online)/anno:2021/pagina_da:116016-1/pagina_a:116016-13/intervallo_pagine:116016-1–116016-13/volume:61
In this paper we analyze fast ion motion in the divertor tokamak test (DTT) device (Albanese et al 2017 Nucl. Fusion 57 016010). It is planned that DTT will be heated through a mix of 45 MW heating power, including 15 MW negative-ion-based neutral be
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f383c365dc06f3849b595ec91b0ecb6
http://hdl.handle.net/11577/3460091
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5
On the polarization of shear Alfvén and acoustic continuous spectra in toroidal plasmas
Autor: N. Carlevaro, V. Fusco, Gregorio Vlad, M. V. Falessi, E. Giovannozzi, Philipp Lauber, Fulvio Zonca
Publikováno v: Journal of Plasma Physics
In this work, the FALCON code is adopted for illustrating the features of shear Alfvén and sound continuous spectra in toroidal fusion plasmas. The FALCON codes employ the local Floquet analysis discussed in (Phys. Plasmas, vol. 26, issue 8, 2019, 0
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd67dbe231eacb974ef8c01fcb376e44
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6
Dynamics of reversed shear Alfvén eigenmode and energetic particles during current ramp-up
Autor: Sergio Briguglio, Fulvio Zonca, Gregorio Vlad, Tao Wang, Zhiyong Qiu
Publikováno v: Nuclear Fusion
Hybrid MHD-gyrokinetic code simulations are used to investigate the dynamics of frequency sweeping reversed shear Alfv\'en eigenmode (RSAE) strongly driven by energetic particles (EPs) during plasma current ramp-up in a conventional tokamak configura
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3dbb7e7aa5820c8ae4c428145f6f4041
http://hdl.handle.net/20.500.12079/56361
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7
Single-n versus multiple-n simulations of Alfvénic modes
Autor: G. Fogaccia, Sergio Briguglio, X. Wang, C. Di Troia, E. Giovannozzi, Gregorio Vlad, Fulvio Zonca, V. Fusco
Publikováno v: Nuclear Fusion
The results of a set of simulations of Alfvén modes driven by an energetic particle population are presented, with the specific aim of comparing single-n and multiple-n simulations (n being the toroidal mode number). The hybrid reduced O(ϵ0 3) MHD
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2bb54d85fffaac76a6f53c551aa461fd
https://hdl.handle.net/21.11116/0000-0002-91C0-021.11116/0000-0001-B704-C21.11116/0000-0001-B706-A
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8
Shear Alfvén fluctuation spectrum in divertor tokamak test facility plasmas
Autor: Sergio Briguglio, G. Fogaccia, Zhiyong Qiu, Gregorio Vlad, Fulvio Zonca, Tao Wang, X. Wang
Publikováno v: Physics of Plasmas
The Divertor Tokamak Test (DTT) facility is proposed for studying power exhaust solutions as well as integrated physics and technology aspects for the demonstration power plant. To illuminate the richness of new novel plasma physics that can be explo
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2259fd4ad499b7a4a7a45eaf608f99bd
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85049263676&doi=10.1063/1.5026652&partnerID=40&md5=ca991ba60649b6436f2908621430b3a2
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9
Saturation of Alfvén modes in tokamak plasmas investigated by Hamiltonian mapping techniques
Autor: C. Di Troia, Gregorio Vlad, G. Fogaccia, T. Hayward-Schneider, X. Wang, M. Schneller, V. Fusco, Sergio Briguglio
Publikováno v: Nuclear Fusion
Nonlinear dynamics of single toroidal number Alfvén eigenmodes destabilised by the the resonant interaction with fast ions is investigated, in tokamak equilibria, by means of Hamiltonian mapping techniques. The results obtained by two different simu
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee71b40211bcf00c556b4e0e2825c534
https://hdl.handle.net/11858/00-001M-0000-002D-0705-311858/00-001M-0000-002D-0707-0
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