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Renovation of the IPM-2 Source Ion-Optical System for the Globus-M2 Spherical Tokamak Neutral Beam Injector

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Abstract

The paper is devoted to the IPM-2 ion source ion-optical system preparation for the plasma heating experiments with a neutral beam in the Globus-M2 spherical tokamak. Within the framework of this work, a complete renovation of the ion-optical system of the ion source was carried out, including its assembly, adjustment, and testing. To assess the quality of the work performed, measurements were made of the main electrical parameters of the high-energy beam, its energy spectrum and signals from secondary emission probes. Based on the data obtained, the beam power distribution profile and its characteristic dimensions are reconstructed, and the relative concentrations of the energy components of the beam are calculated.

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ACKNOWLEDGMENTS

The key beam parameters were measured at the unique scientific complex Globus-M Spherical Tokamak, which is a part of the federal common research center Material Science and Diagnostics in Advanced Technologies.

Funding

The studies reported in Section 1 were supported by the Ioffe Institute under state assignment 0040-2019-0023. The studies reported in Section 2 were supported by the Russian Science Foundation, project no. 17-72-20076. The studies reported in Section 3 were performed under state assignment 0034-2021-0001.

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Authors and Affiliations

  1. Ioffe Institute, St. Petersburg, Russia

    A. Yu. Telnova, V. B. Minaev & P. B. Shchegolev

  2. National Research Center “Kurchatov Institute”, Moscow, Russia

    A. A. Panasenkov

Authors
  1. A. Yu. Telnova
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  2. V. B. Minaev
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  3. A. A. Panasenkov
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  4. P. B. Shchegolev
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Correspondence to A. Yu. Telnova.

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Telnova, A.Y., Minaev, V.B., Panasenkov, A.A. et al. Renovation of the IPM-2 Source Ion-Optical System for the Globus-M2 Spherical Tokamak Neutral Beam Injector. Tech. Phys. 68, 485–491 (2023). https://doi.org/10.1134/S1063784223900553

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  • DOI: https://doi.org/10.1134/S1063784223900553

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