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Listar por autor "Fisher, R. K."
Mostrando ítems 1-7 de 7
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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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Artículo
Characterization of off-axis fishbones
Heidbrink, W. W.; Austin, M. E.; Fisher, R. K.; García Muñoz, Manuel; Matsunaga, G. (IOP Publishing, 2011-08)Repetitive bursting instabilities with strong frequency chirping occur in highbeta, beam-heated plasmas with safety factor ...
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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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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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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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Scintillator-based diagnostic for fast ion loss measurements on DIII-D
Fisher, R. K.; Pace, D. C.; García Muñoz, Manuel; Heidbrink, W. W.; Muscatello, C. M. (AIP Publishing, 2010-10)A new scintillator-based fast ion loss detector has been installed on DIII-D with the time response 100 kHz needed to ...
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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 ...