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DIII-D latest results and implications

Conference · · Fusion Technol.; (United States)
OSTI ID:6244444
The DIII-D tokamak has demonstrated the feasibility of the divertor configuration for future reactor relevant devices. H-mode (good) confinement has been demonstrated for deuterium discharges in both single-null and double-null divertor configurations and under a variety of heating scenarios including neutral beam injection, electron cyclotron heating, and ohmic heating. Plasma beta values (BETA = 6.8%) near expected theoretical limits (3.5 I/aB) have been demonstrated. Plasma currents are limited by safety factors q > 2 near the surface of the plasma. Energy confinement improves with increasing plasma current until q decreases below 3. Divertor heat flow has been documented and initial boundary physics studies carried out. Non-inductive current drive has been demonstrated using neutral beam injection.
Research Organization:
General Atomics, San Diego, CA (US)
OSTI ID:
6244444
Report Number(s):
CONF-881031-
Conference Information:
Journal Name: Fusion Technol.; (United States) Journal Volume: 15:2
Country of Publication:
United States
Language:
English