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Title: Charge-exchange recombination spectroscopy of the plasma ion temperature at the T-10 tokamak

Charge-exchange recombination spectroscopy (CXRS) based on a diagnostic neutral beam has been developed at the T-10 tokamak. The diagnostics allows one to measure the ion temperature profile in the cross section of the plasma column. In T-10 experiments, the measurement technique was adjusted and the elements of the CXRS diagnostics for ITER were tested. The used spectroscopic equipment makes it possible to reliably determine the ion temperature from the Doppler broadening of impurity lines (helium, carbon), as well as of the spectral lines of the working gas. The profiles of the plasma ion temperature in deuterium and helium discharges were measured at different plasma currents and densities, including with the use of active Doppler measurements of lines of different elements. The validity and reliability of ion temperature measurements performed by means of the developed CXRS diagnostics are analyzed.
Authors:
 [1] ;  [2] ; ; ; ; ;  [1] ;  [3] ; ; ;  [1]
  1. National Research Centre Kurchatov Institute (Russian Federation)
  2. Project Center ITER (Russian Federation)
  3. National Academy of Sciences of Belarus, Stepanov Institute of Physics (Belarus)
Publication Date:
OSTI Identifier:
22216089
Resource Type:
Journal Article
Resource Relation:
Journal Name: Plasma Physics Reports; Journal Volume: 39; Journal Issue: 8; Other Information: Copyright (c) 2013 Pleiades Publishing, Ltd.; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CARBON; CHARGE EXCHANGE; DENSITY; DEUTERIUM; DOPPLER BROADENING; ELECTRIC CURRENTS; HELIUM; ION TEMPERATURE; ITER TOKAMAK; PLASMA; PLASMA DENSITY; RECOMBINATION; RELIABILITY; SPECTROSCOPY; T-10 TOKAMAK