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Stability analysis of toroidicity-induced Alfven eigenmodes in TFTR DT experiments

Technical Report ·
DOI:https://doi.org/10.2172/93637· OSTI ID:93637

The toroidicity-induced Alfvin eigenmodes (TAE) with radially extended structure are found to be stable in the Tokamak Fusion Test Reactor Deuterium-Tritium plasmas. A core localized TAE mode is shown to exist near the center of the plasma at small magnetic shear and finite plasma beta, which can be destabilized by energetic alpha particles on TFTR. With additional instability drive from fast minority ions powered by ICRH, both the global and the core localized TAE modes can be readily destabilized.

Research Organization:
Princeton Univ., NJ (United States). Plasma Physics Lab.
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC02-76CH03073
OSTI ID:
93637
Report Number(s):
PPPL--3110; ON: DE95016243
Country of Publication:
United States
Language:
English