Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aps..apre16003t&link_type=abstract
American Physical Society, April Meeting, Jointly Sponsored with the High Energy Astrophysics Division (HEAD) of the American As
Astronomy and Astrophysics
Astrophysics
Scientific paper
The goal of fusion energy science research is economically and environmentally attractive energy. Optimization of the tokamak concept toward that goal leads to 4 physics requirements: 1) maximizing plasma pressure, 2) minimizing turbulent transport losses, 3) developing continuous operation using noninductive current sources and maximizing self-generated bootstrap current, and 4) developing appropriate heat removal and particle control scenarios. Advanced Tokamak research aims at demonstrating these conditions simultaneously, and establishing the scientific basis for projecting to energy production. Both experiments and calculations indicate such optimized scenarios are feasible. Key features of these plasmas include strong cross-sectional shaping, stabilization of MHD modes by a wall and active feedback, and current profile control. Extending these high performance conditions to full steady state is the focus of ongoing research in DIII-D. The strong non-linear coupling amongst fusion alpha particles, pressure driven current, turbulent transport, MHD stability, and boundary behavior will be an exciting challenge for the self-heated burning plasma regime.
Garofalo A. M.
Greenfield C. M.
Kessel C.
Luce T. C.
Petty C. C.
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