International Conference PhysicA.SPb/2023

Supersonic gas jet generation using a plasma accelerator

V. Yu. Goryainov^ab, A. Voronin<sup>a

a</sup> Ioffe Institute, St. Petersburg, Russia
^b Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia

Abstract: We propose a method of forming a neutral helium flux using a plasma accelerator. The method consists in the transformation of a dense and cold plasma jet into a gas flow. For this purpose, the plasma was passed through a long channel, in which it could recombine as it moved. As a result of this research, conditions were found in which a jet of neutral helium with a velocity of about ten kilometers per second was mostly released at the outlet of duct. A high-velocity helium jet is planned to be used as part of a helium thermometer for deep probing of near-wall plasma in the Globus-M2 tokamak.

Keywords: plasma accelerator, triple recombination, supersonic gas jet.

Received: 05.05.2023
Revised: 11.07.2023
Accepted: 30.10.2023

DOI: 10.61011/PJTF.2023.24.56862.42A

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