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Listar por autor "Zeeland, M. A. van"
Mostrando ítems 1-13 de 13
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Artículo
Active control of Alfvén eigenmodes in magnetically confined toroidal plasmas
García Muñoz, Manuel; Sharapov, S. E.; Zeeland, M. A. van; Ascasibar, E.; Cappa, A.; Galdón Quiroga, Joaquín; Sanchis Sánchez, Lucía; Rivero Rodriguez, Juan Francisco (IOP Publishing, 2019-05)Alfvén waves are electromagnetic perturbations inherent to magnetized plasmas that can be driven unstable by a free energy ...
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Alfven eigenmode stability and fast ion loss in DIII-D and ITER reversed magnetic shear plasmas
Zeeland, M. A. van; Gorelenkov, N. N.; Heidbrink, W. W.; Kramer, G. J.; Spong, D. A.; García Muñoz, Manuel (IOP Publishing, 2012-09)Neutral beam injection into reversed-magnetic shear DIII-D plasmas produces a variety of Alfvenic activity including ...
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Artículo
Beam ion losses due to energetic particle geodesic acoustic modes
Fisher, R. K.; Pace, D. C.; Kramer, G. J.; Zeeland, M. A. van; Nazikian, R.; García Muñoz, Manuel (IOP Publishing, 2012-12)We report the first experimental observations of fast-ion loss in a tokamak due to energetic particle driven geodesic ...
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Convective beam ion losses due to Alfven eigenmodes in DIII-D reversed-shear plasmas
Pace, D. C.; Fisher, R. K.; García Muñoz, Manuel; Heidbrink, W. W.; Zeeland, M. A. van (IOP Publishing, 2011-06)Coherent losses of neutral beam ions are observed at frequencies corresponding to toroidal and reversed-shear Alfven ...
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Electron cyclotron heating can drastically alter reversed shear Alfven eigenmode activity in DIII-D through finite pressure effects
Zeeland, M. A. van; Heidbrink, W. W.; Sharapov, S. E.; Spong, D.; Cappa, A.; García Muñoz, Manuel (IOP Publishing, 2016-11)A recent DIII-D experiment investigating the impact of electron cyclotron heating (ECH) on neutral beam driven reversed ...
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Fast ion transport during applied 3D magnetic perturbations on DIII-D
Zeeland, M. A. van; Ferraro, N. M.; Grierson, B. A.; Heidbrink, W. W.; Kramer, G. J.; García Muñoz, Manuel (IOP Publishing, 2015-07)Measurements show fast ion losses correlated with applied three-dimensional (3D) fields in a variety of plasmas ranging ...
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Artículo
Fast-ion transport induced by Alfven eigenmodes in the ASDEX Upgrade tokamak
García Muñoz, Manuel; Classen, I. G. J.; Geiger, B.; Heidbrink, W. W.; Zeeland, M. A. van (IOP Publishing, 2011-10)A comprehensive suite of diagnostics has allowed detailed measurements of the Alfven eigenmode (AE) spatial ´ structure ...
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Measurements and modeling of Alfven eigenmode induced fast ion transport and loss in DIII-D and ASDEX Upgrade
Zeeland, M. A. van; Heidbrink, W. W.; Fischer, R. K.; García Muñoz, Manuel; Kramer, G. J. (AIP Publishing, 2011-05)Neutral beam injection into reversed magnetic shear DIII-D and ASDEX Upgrade plasmas produces a variety of Alfve´nic ...
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Modeling the response of a fast ion loss detector using orbit tracing techniques in a neutral beam prompt-loss study on the DIII-D tokamak
Pace, D. C.; Fisher, R. K.; García Muñoz, Manuel; Darrow, D. S.; Heidbrink, W. W.; Muscatello, C. M.; Zeeland, M. A. van; Zhu, Y. B. (American Institute of Physics, 2010)A numerical model describing the expected measurements of neutral beam prompt-losses by anewly commissioned fast ion loss ...
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Modulation of prompt fast-ion loss by applied n=2 fields in the DIII-D tokamak
Zeeland, M. A. van; Ferraro, N. M.; Heidbrink, W. W.; Kramer, G. J.; Pace, D. C.; Chen, X.; García Muñoz, Manuel (IOP Publishing, 2014)Energy and pitch angle resolved measurements of escaping neutral beam ions (E approximate to 80 keV) have been made during ...
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Artículo
Near midplane scintillator-based fast ion loss detector on DIII-D
Chen, X.; Fisher, R. K.; Pace, D. C.; García Muñoz, Manuel; Heidbrink, W. W.; Zeeland, M. A. van (America Institute of Physics, 2012)A new scintillator-based fast-ion loss detector (FILD) installed near the outer midplane of the plasma has been commissioned ...
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Artículo
Scrape-off layer ion acceleration during fast wave injection in the DIII-D tokamak
Pace, D. C.; Pinsker, R. I.; Heidbrink, W. W.; Fisher, R. K.; Zeeland, M. A. van; García Muñoz, Manuel (IOP Publishing, 2012-06)Fast wave injection is employed on the DIII-D tokamak as a current drive and electron heating method. Bursts of energetic ...
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The effects of electron cyclotron heating and current drive on toroidal Alfven eigenmodes in tokamak plasmas
Sharapov, S. E.; García Muñoz, Manuel; Zeeland, M. A. van; Bobkov, B.; Classen, I. G. J.; Galdón Quiroga, Joaquín; González Martín, Juan de Dios; Rodríguez Ramos, Mauricio; Sanchís Sánchez, Lucía (IOP Publishing, 2018-01)Dedicated studies performed for toroidal Alfvén eigenmodes (TAEs) in ASDEX-Upgrade (AUG) discharges with monotonic ...