Effect of Energetic-Ion-Driven MHD Instabilities on Energetic-Ion-Transport in Compact Helical System and Large Helical Device

Autor:	M. Isobe, K. Ogawa, K. Toi, M. Osakabe, K. Nagaoka, A. Shimizu, D. A. Spong, S. Okamura, null CHS, null LHD Experiment Groups
Rok vydání:	2010
Předmět:	Physics Tokamak Plasma Condensed Matter Physics law.invention Ion Large Helical Device Physics::Plasma Physics Normal mode law Excited state Physics::Space Physics Physics::Accelerator Physics Magnetohydrodynamics Atomic physics Excitation
Zdroj:	Contributions to Plasma Physics. 50:540-545
ISSN:	0863-1042
Popis:	This paper describes 1) representative results on excitation of energetic-particle mode (EPM) and toroidicity-induced Alfven eigenmode (TAE) and consequent beam-ion losses in CHS, and 2) recent results on beam-ion transport and/or losses while EPMs are destabilized in LHD. Bursting EPMs and TAEs are often excited by co-injected beam ions in the high-beam ion pressure environment and give a significant effect on co-going beam ions in both experiments. It seems that in CHS, resonant beam ions are lost within a relatively short-time scale once they are anomalously transported due to energetic-ion driven MHD modes, whereas unlike CHS, redistribution of beam ions due to energetic-ion driven MHD modes is seen in LHD, suggesting that not all anomalously transported beam ions escape from the plasma.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9cc0bc871f50d98b4fa06893c35d6872 https://doi.org/10.1002/ctpp.200900009 Zobrazit plný text záznamu Plný text