Carbon flows in attached divertor plasmas

Journal Article · Sat May 01 04:00:00 EDT 1999 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.873442· OSTI ID:344905

Isler, R C ^[1]; Brooks, N H; West, W P ^[2]; Porter, G D ^[3]

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1. Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-8072 (United States)
2. General Atomics, San Diego, California 92186-5068 (United States)
3. Lawrence Livermore National Laboratory, Livermore, California 95540 (United States)

Parallel flow velocities of carbon ions in the DIII-D divertor [J. Luxon {ital et al.}, {ital Plasma Physics Controlled Nuclear Fusion Research}, 1986 (International Atomic Energy Agency, Vienna, 1987), Vol. I, p. 159; S. L. Allen {ital et al.}, {ital Controlled Fusion and Plasma Physics}, 1987 (Proc. 24th European Conf. Berchtesgaden, 1997), Vol. 21 A, Part III, p. 1129] have been studied under various operating conditions: L-mode (low-confinement mode), H-mode (high-confinement mode) with low-frequency ELMs (edge-localized modes), and H-mode with high-frequency ELMs. Both normal and reversed flows (toward the target plate and away from the target plate, respectively) are observed under all conditions, with the reversed speeds being as much as a factor of four greater than normal speeds. Magnitudes are approximately the same for L-mode and H-mode operation with high-frequency ELMs. In H-mode conditions with low-frequency ELMs, normal velocities are frequently observed to decline while reversed velocities increase in comparison to the other two conditions. {copyright} {ital 1999 American Institute of Physics.}

• OSTI ID: 344905
• Report Number(s): CONF-981127--
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 5 Vol. 6; ISSN 1070-664X; ISSN PHPAEN
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CARBON
CATIONS
CHARGED-PARTICLE TRANSPORT
DIVERTORS
OPERATION
PLASMA CONFINEMENT
PLASMA DIAGNOSTICS
PLASMA IMPURITIES
PLASMA INSTABILITY