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Title: 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 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{sup 3}Π{sub u}–a{sup 3}Σ{sub g}{sup +}) of deuterium in the wavelength range from 590 to 640 nm. The rotational temperatures of ground state X{sup 1}Σ{sub g}{sup +} and upper excited state d{sup 3}Π{sub u} are estimated by the measured spectra.
Authors:
 [1] ;  [2] ;  [1] ;  [2]
  1. Bauman Moscow State Technical University (Russian Federation)
  2. National Research Centre Kurchatov Institute (Russian Federation)
Publication Date:
OSTI Identifier:
22471908
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Atomic Nuclei; Journal Volume: 78; Journal Issue: 12; Other Information: Copyright (c) 2015 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; DEUTERIUM; EDGE LOCALIZED MODES; ELECTRIC DISCHARGES; EMISSION SPECTRA; EXCITED STATES; GROUND STATES; PLASMA; SPATIAL RESOLUTION; T-10 TOKAMAK; TEMPERATURE MEASUREMENT