Development of the concept of charge-exchange recombination spectroscopy for ITER |
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| Authors: | S. N. Tugarinov I. L. Beigman L. A. Vainshtein V. N. Dokuka A. V. Krasil’nikov N. N. Naumenko I. Yu. Tolstikhina R. R. Khairutdinov |
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| Affiliation: | (1) Troitsk Institute for Innovation and Fusion Research, Troitsk, Moscow oblast, 142190, Russia;(2) Lebedev Physical Institute, Russian Academy of Sciences, Leninskiipr. 53, Moscow, 119991, Russia;(3) Institute of Molecular and Atomic Physics, Belarussian Academy of Sciences, pr. F. Scoriny 70, Minsk, 220072, Belarus |
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| Abstract: | Charge-exchange recombination spectroscopy under ITER conditions is numerically simulated using the DINA code. The code allows one to calculate the attenuation of neutral beams in plasma, the intensity of atomic emission and emission from the ions produced by charge exchange with the neutral beam, and the intensity ratio between the emission related to charge exchange and the background continuum plasma emission. The cross sections for atom-ion interactions in plasma are calculated, and the excitation rates of spectral transitions in hydrogen-like impurity ions are determined. The measurement scheme and the main parameters of the spectrometer proposed for charge-exchange recombination diagnostics in ITER are described. |
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