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Spectroscopic study of turbulent heating in the high beta tokamak - Torus II

Technical Report ·
DOI:https://doi.org/10.2172/5610944· OSTI ID:5610944
Visible spectroscopy, involving line profile and line intensity measurements, was used to study the turbulent heating of the rectangular cross-section high-beta tokamak Torus II. The spectroscopy was done in the visible wave-length region using a six channel polychrometer having 0.2 A resolution, which is capable of radial scans of the plasma. The plasma, obtained by ionizing helium, is heated by poloidal skin currents, induced by a rapid (tau/sub R/ approx. = 1.7 ..mu..sec) change of the toroidal magnetic field either parallel or anti-parallel to the initial toroidal bias magnetic field, which converts a cold toroidal Z-pinch plasma into a hot tokamak plasma.
Research Organization:
Columbia Univ., New York (USA). Plasma Lab.
DOE Contract Number:
EY-76-S-02-2456
OSTI ID:
5610944
Report Number(s):
COO-2456-70
Country of Publication:
United States
Language:
English