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Probe Device for Comprehensive Study of Plasma Interaction with Divertor for TRT Tokamak

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Abstract

The choice of plasma contact materials and configurations for power fusion reactors is still not obvious. The tokamak with reactor technologies (TRT) under construction should help resolve this issue. Therefore, the most complete study of the effect of plasma on the tokamak divertor for various types of discharges and an analysis of their consequences are of great importance. Divertor probes are devices that measure thermal and corpuscular flows toward the surface of a divertor and/or record the results of their impact on the divertor. They have found wide application in fusion facilities. The features, advantages, and disadvantages of the divertor probes presented in literature, as well as cases of using samples of materials or devices to solve individual problems to which divertor probes are applicable are discussed in this work. A preliminary design and thermal calculations of the divertor probe for the TRT tokamak are presented, which, according to the authors, is capable of performing a set of measurements that make it possible to draw a conclusion about the mechanisms and regularities of processes on the divertor surface depending on the parameters and conditions of plasma irradiation, as well as to speed up the determination of optimal materials and modes of plasma irradiation of divertor tiles.

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  1. National Research Nuclear University “MEPhI”, 115409, Moscow, Russia

    A. A. Airapetov, L. B. Begrambekov & Ya. A. Sadovskiy

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Airapetov, A.A., Begrambekov, L.B. & Sadovskiy, Y.A. Probe Device for Comprehensive Study of Plasma Interaction with Divertor for TRT Tokamak. Plasma Phys. Rep. 48, 1404–1413 (2022). https://doi.org/10.1134/S1063780X2260150X

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