Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

INVESTIGATION OF MAIN-CHAMBER AND DIVERTOR RECYCING IN DIII-D USING TANGENTIALLY VIEWING CID CAMERAS

Conference ·
OSTI ID:821593

OAK-B135 Measurements of the D{sub {alpha}} emission profiles from the divertor and main chamber region in DIII-D, performed in low-density L-mode, and low and high-density ELMy H-mode plasmas imply that core plasma fueling occurs through the divertor channel. Emission profiles of carbon, combined with UEDGE modeling of the L-mode plasmas, also suggests that chemical sputtering of carbon from the flux surface adjacent to the inner divertor walls, and temperature gradient forces in the scrape-off layer, determine the carbon content of the inner scrape-off layer.

Research Organization:
GENERAL ATOMICS (US)
Sponsoring Organization:
(US)
DOE Contract Number:
AC03-99ER54463
OSTI ID:
821593
Country of Publication:
United States
Language:
English