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Analysis of Physical and Engineering Capabilities for the Implementation of the Reflectometry Diagnostics at T-15MD Installation

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Abstract

Reflectometry is considered one of the promising diagnostics for measuring plasma parameters at fusion devices now. This diagnostic has a good compatibility with high neutron fluxes, it is tolerant to mechanical and thermal loads during the plasma regime and has a low sensitivity to dust. Reflectometry is widely used at existing installations to measure the electron density profile and the parameters of electron density fluctuations. In this paper, an analysis is made of the capabilities of this diagnostics at the recently put into operation T-15MD tokamak from the viewpoint of its physical ability to perform measurements, the required parameters of reflectometers, and its technical implementability, taking into account the today state of microwave technology and the experience of operating similar diagnostics in Russia and worldwide. In the development of the diagnostics, it is proposed to widely use the accrued experience collected during the development of the “ITER Reflectometry from the High Magnetic Field Side” diagnostics. The enumerated approaches used can also be applied to the development of reflectometers at other plasma installations.

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Funding

This work was completed under the Federal project “Development of Technologies for Nuclear Fusion and Innovative Plasma Technologies” (order no. 2996 of National Research Centre Kurchatov Institute from December 31, 2020).

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Authors and Affiliations

  1. National Research Centre Kurchatov Institute, 123182, Moscow, Russia

    D. A. Shelukhin, G. F. Subbotin, V. A. Vershkov & I. A. Vladimirov

Authors
  1. D. A. Shelukhin
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  2. G. F. Subbotin
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  3. V. A. Vershkov
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  4. I. A. Vladimirov
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Correspondence to D. A. Shelukhin.

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Translated by E. Voronova

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Shelukhin, D.A., Subbotin, G.F., Vershkov, V.A. et al. Analysis of Physical and Engineering Capabilities for the Implementation of the Reflectometry Diagnostics at T-15MD Installation. Plasma Phys. Rep. 48, 721–739 (2022). https://doi.org/10.1134/S1063780X22600402

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