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Measurement of Radiation Losses and Effective Ion Charge on the Globus-M2 Tokamak

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Abstract

In this Letter, results of measurements of radiation losses Prad and effective ion charge Zeff in the conditions of magnetic field up to 0.7 T and plasma current up to 300 kA for a wide range of electron density first obtained on the Globus-M2 tokamak are presented. The analysis of the results shows the decrease in the radiation losses share of the input power on the Globus-M2 tokamak as compared with the same parameter for the Globus-M facility. A large dip at the center of the Prad power profiles is revealed. A decrease in the Zeff values is observed with an increase in electron density.

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Funding

The study of radiation losses carried out by the E.A. Tukhmeneva, G.S. Kurskiev, V.B. Minaev, N.V. Sa-kharov, E.O. Kiselev, A.Yu. Telnova, N.N. Bakharev, and P.B. Shchegolev was supported by the Russian Science Foundation, project no. 17-72-20076.

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Authors and Affiliations

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

    E. A. Tukhmeneva, N. N. Bakharev, V. I. Varfolomeev, V. K. Gusev, N. S. Zhiltsov, E. O. Kiselev, G. S. Kurskiev, V. B. Minaev, Yu. V. Petrov, N. V. Sakharov, A. Yu. Telnova, S. Yu. Tolstyakov & P. B. Shchegolev

  2. York Plasma Institute, University of York, York, United Kingdom

    A. D. Sladkomedova

Authors
  1. E. A. Tukhmeneva
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  2. N. N. Bakharev
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  3. V. I. Varfolomeev
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  4. V. K. Gusev
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  5. N. S. Zhiltsov
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  6. E. O. Kiselev
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  7. G. S. Kurskiev
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  8. V. B. Minaev
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  9. Yu. V. Petrov
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  10. N. V. Sakharov
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  11. A. D. Sladkomedova
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  12. A. Yu. Telnova
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  13. S. Yu. Tolstyakov
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  14. P. B. Shchegolev
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Corresponding author

Correspondence to E. A. Tukhmeneva.

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The authors declare that they have no conflict of interest.

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Translated by N. Semenova

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Tukhmeneva, E.A., Bakharev, N.N., Varfolomeev, V.I. et al. Measurement of Radiation Losses and Effective Ion Charge on the Globus-M2 Tokamak. Tech. Phys. Lett. 47, 56–60 (2021). https://doi.org/10.1134/S1063785021010272

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  • DOI: https://doi.org/10.1134/S1063785021010272

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