Poloidal Rotation in TFTR Reversed Shear Plasmas

Journal Article · Sat Aug 01 04:00:00 EDT 1998 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.81.1429· OSTI ID:641551

Bell, R. E. ^[1]; Levinton, F. M. ^[2]; Batha, S. H. ^[3]; Synakowski, E. J. ^[1]; Zarnstorff, M. C. ^[1]

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1. Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
2. Fusion Physics Technology, Torrance, California 90503 (United States)
3. Science Research Laboratory, 15 Ward Street, Somerville, Massachusetts 02144 (United States)

A bifurcation in the core poloidal rotation of carbon impurity ions in the Tokamak Fusion Test Reactor (TFTR) has been observed prior to the transport bifurcation associated with enhanced reverse shear plasmas. In a narrow radial region of the plasma, the impurity ion poloidal rotation reverses direction. This poloidal flow is associated with the establishment of a large negative radial electric field with strong shear. The measured poloidal velocities before, during, and after this precursor differ from neoclassical predictions. © 1998 The American Physical Society

• Research Organization: Princeton Plasma Physics Laboratory
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 641551
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 7 Vol. 81; ISSN 0031-9007; ISSN PRLTAO
• Publisher: American Physical Society (APS)
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BIFURCATION
CARBON
ELECTRIC FIELDS
EQUATIONS
IONS
PLASMA
PLASMA DIAGNOSTICS
PLASMA IMPURITIES
TFTR TOKAMAK
TOKAMAK DEVICES