Observation of beta-induced Alfvén eigenmodes in the DIII-D tokamak
In: Physical review letters, Jg. 71 (1993), Heft 6, S. 855-858
Online
academicJournal
- print, 13 ref
Zugriff:
Energetic ions can drive Alfven gap modes unstable, causing large losses of fast ions. Toroidicityinduced Alfven eigenmodes (TAE) were expected to disappear into the shear Alfven continuum and become stable as the plasma beta increased. Although TAE modes may disappear, another dangerous instability with similar properties but approximately half the TAE frequency appears in a spectral gap that is created by finite beta erects. The measured frequency of the new mode agrees with the theoretical frequency of beta-induced Alfven eigenmodes.
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Observation of beta-induced Alfvén eigenmodes in the DIII-D tokamak
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Autor/in / Beteiligte Person: | HEIDBRINK, W. W ; STRAIT, E. J ; CHU, M. S ; TURNBULL, A. D |
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Zeitschrift: | Physical review letters, Jg. 71 (1993), Heft 6, S. 855-858 |
Veröffentlichung: | Ridge, NY: American Physical Society, 1993 |
Medientyp: | academicJournal |
Umfang: | print, 13 ref |
ISSN: | 0031-9007 (print) |
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