Iron radiation in tokamak discharges

Conference · Sun Jan 01 04:00:00 EST 1978

OSTI ID:6504118

Hinnov, E

Iron ion resonance-line intensity measurements are described as a representative sample of spectroscopic diagnostics of tokamak plasmas. A brief outline of the tokamak discharge characteristics is followed by a description of the spectrometer, and its calibration for absolute intensity measurements in the vacuum ultraviolet wavelength region. Then iron ion resonance lines in the wavelength range 90-360 A, from ionization states FeXV through FeXXIV, are shown as observed in the PLT tokamak. A discussion of the principal excitation processes leading to the emission of these lines in tokamak-type plasmas, and of the appropriate atomic cross-sections and rate coefficients, is then followed by quantitative measurements of these emissions in time and space in a PLT tokamak discharge. The results are interpreted in terms of iron ion concentrations, their behavior in the discharge, and their implications to radiative energy loss, contributions to electrical resistivity, and ion confinement times in the plasma.

• Research Organization: Princeton Univ., NJ (USA)
• DOE Contract Number: EY-76-C-02-3073
• OSTI ID: 6504118
• Report Number(s): CONF-780975-1
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700104* -- Fusion Energy-- Plasma Research-- Plasma Kinetics-Experimental-- (-1987)
ATOMIC IONS
CHARGED PARTICLES
CLOSED PLASMA DEVICES
CONFINEMENT
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
EMISSION SPECTRA
ENERGY LOSSES
IMPURITIES
IONS
IRON
IRON IONS
LOSSES
METALS
PHYSICAL PROPERTIES
PLASMA CONFINEMENT
SPECTRA
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
TRANSITION ELEMENTS