Molecular emission in the edge plasma of T-10 tokamak

The experiments on recording molecular emission in the edge plasma of the T-10 tokamak are described. To obtain reliable spectra with sufficient spectral, temporal, and spatial resolution, the optical circuit is optimized for various experimental conditions. Typical spectra measured in two sections...

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Bibliographic Details
Published in:Physics of atomic nuclei 2015-12, Vol.78 (12), p.1319-1325
Main Authors: Zimin, A. M., Krupin, V. A., Troynov, V. I., Klyuchnikov, L. A.
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Analysis
DEUTERIUM
EDGE LOCALIZED MODES
ELECTRIC DISCHARGES
EMISSION SPECTRA
EXCITED STATES
GROUND STATES
Hydrogen
Nuclear Fusion
Particle and Nuclear Physics
Physics
Physics and Astronomy
PLASMA
SPATIAL RESOLUTION
T-10 TOKAMAK
TEMPERATURE MEASUREMENT
Tokamaks
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Summary:The experiments on recording molecular emission in the edge plasma of the T-10 tokamak are described. To obtain reliable spectra with sufficient spectral, temporal, and spatial resolution, the optical circuit is optimized for various experimental conditions. Typical spectra measured in two sections of the tokamak are shown. It is shown that, upon varying the parameters of the discharge, the molecular spectrum not only changes significantly in intensity but also undergoes a qualitative change in the rotational and vibrational structure. For a detailed analysis, we use the Fulcher-α system (d 3 Π u –a 3 Σ g + ) of deuterium in the wavelength range from 590 to 640 nm. The rotational temperatures of ground state X 1 Σ g + and upper excited state d 3 Π u are estimated by the measured spectra.
ISSN:1063-7788
1562-692X
DOI:10.1134/S1063778815120170