Study of Aspect Ratio Effects on Kinetic MHD Instabilities in NSTX and DIII-D
- Princeton Plasma Physics Laboratory
We report general observations of kinetic instabilities on the low aspect-ratio National Spherical Torus Experiment (NSTX) and describe explicit aspect ratio scaling studies of kinetic instabilities using both the NSTX and the DIII-D tokamak. The NSTX and the DIII-D tokamak are nearly ideal for such experiments, having a factor of two difference in major radius but otherwise similar parameters. We also introduce new theoretical work on the physics of kinetic ballooning modes (KBM), toroidal Alfven eigenmodes (TAE), and compressional Alfven eigenmodes (CAE) with applications to NSTX.
- Research Organization:
- Princeton Plasma Physics Lab., Princeton, NJ (US)
- Sponsoring Organization:
- USDOE Office of Science (SC) (US)
- DOE Contract Number:
- AC02-76CH03073
- OSTI ID:
- 835927
- Report Number(s):
- PPPL-4013
- Country of Publication:
- United States
- Language:
- English
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