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Developing an edge-plasma diagnostic tool for the Globus-M tokamak based on measuring ratios of HeI lines

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Abstract

A diagnostic technique that is based on measuring the ratios of neutral-helium line strengths has been developed for peripheral distributions of electron temperature and density of tokamak plasma. The main components of the technique are a four-channel filter-lens imaging polychromator (FLIP-4) and a Phantom Miro M110 high-speed camera for recording the images. The polychromator has been assembled, adjusted, and tested on an optical test bench. The optical system was installed on the spherical Globus-M tokamak. Some preliminary experiments were carried out. Images of the plasma-gun jet were obtained at neutralhelium lines.

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Authors and Affiliations

  1. Peter the Great St. Petersburg Polytechnic University, St. Petersburg, 195251, Russia

    V. M. Timokhin, A. I. Rykachevskii, I. V. Miroshnikov & V. Yu. Sergeev

  2. Ioffe Physical Technical Institute, Russian Academy of Sciences, St. Petersburg, 194021, Russia

    M. M. Kochergin, A. N. Koval’, E. E. Mukhin, S. Yu. Tolstyakov & A. V. Voronin

Authors
  1. V. M. Timokhin
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  2. A. I. Rykachevskii
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  3. I. V. Miroshnikov
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  4. V. Yu. Sergeev
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  5. M. M. Kochergin
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  6. A. N. Koval’
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  7. E. E. Mukhin
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  8. S. Yu. Tolstyakov
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  9. A. V. Voronin
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Corresponding author

Correspondence to V. M. Timokhin.

Additional information

Original Russian Text © V.M. Timokhin, A.I. Rykachevskii, I.V. Miroshnikov, V.Yu. Sergeev, M.M. Kochergin, A.N. Koval’, E.E. Mukhin, S.Yu. Tolstyakov, A.V. Voronin, 2016, published in Pis’ma v Zhurnal Tekhnicheskoi Fiziki, 2016, Vol. 42, No. 15, pp. 13–18.

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Timokhin, V.M., Rykachevskii, A.I., Miroshnikov, I.V. et al. Developing an edge-plasma diagnostic tool for the Globus-M tokamak based on measuring ratios of HeI lines. Tech. Phys. Lett. 42, 775–778 (2016). https://doi.org/10.1134/S1063785016080162

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  • DOI: https://doi.org/10.1134/S1063785016080162

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