Fusion programs in applied plasma physics
The objectives of the theoretical science program are: To support the interpretation of present experiments and predict the outcome of future planned experiments; to improve on existing models and codes and validate against experimental results; and to conduct theoretical physics development of advanced concepts with applications for DIII-D and future devices. Major accomplishments in FY91 include the corroboration between theory and experiment on MHD behavior in the second stable regime of operation on DIII-D, and the frequency and mode structure of toroidal Alfven eigenmodes in high beta, shaped plasmas. We have made significant advances in the development of the gyro-Landau fluid approach to turbulence simulation which more accurately models kinetic drive and damping mechanisms. Several theoretical models to explain the bifurcation phenomenon in L- to H-mode transition were proposed providing the theoretical basis for future experimental verification. The capabilities of new rf codes have been upgraded in response to the expanding needs of the rf experiments. Codes are being employed to plan for a fully non-inductive current drive experiment in a high beta, enhanced confinement regime. GA's experimental effort in Applied Physics encompasses two advanced diagnostics essential for the operation of future fusion experiments: Alpha particle diagnostic, and current and density profile diagnostics. This paper discusses research in all these topics.
- Research Organization:
- General Atomics, San Diego, CA (United States)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC03-89ER53277
- OSTI ID:
- 5689990
- Report Number(s):
- GA-A-20803; ON: DE92009646
- Country of Publication:
- United States
- Language:
- English
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Gyrokinetic simulation of global and local Alfven eigenmodes driven by energetic particles in a DIII-D discharge
Related Subjects
DOUBLET-3 DEVICE
H-MODE PLASMA CONFINEMENT
PLASMA DIAGNOSTICS
ALFVEN WAVES
ALPHA PARTICLES
CURRENT DENSITY
DIVERTORS
MHD EQUILIBRIUM
PROGRESS REPORT
RESEARCH PROGRAMS
RF SYSTEMS
TRANSPORT THEORY
CHARGED PARTICLES
CLOSED PLASMA DEVICES
CONFINEMENT
DOCUMENT TYPES
EQUILIBRIUM
HYDROMAGNETIC WAVES
PLASMA CONFINEMENT
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
700310* - Plasma Confinement- (1992-)
700320 - Plasma Diagnostic Techniques & Instrumentation- (1992-)