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Radiative Heat Flux from Excited Atoms in a Radiofrequency Ion Thruster

Abstract

The radiative flux coming from the discharge plasma on the surface in radiofrequency ion thrusters has been considered. Spontaneous emission of photons is formed when the excitation of plasma atoms and ions is removed. The distributions of the densities of the heat flux brought by radiation on the surface in the thruster have been calculated. The distributions can be used in the numerical calculations of temperatures in thruster designs.

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Funding

This work was carried out within the framework of a state assignment of the Ministry of Science and Higher Education of the Russian Federation, grant no. FSFF-2020-0014.

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Correspondence to V. K. Abgaryan.

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The authors declare that they have no conflict of interest.

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Translated by N. Petrov

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Abgaryan, V.K., Abgaryan, M.V., Nadiradze, A.B. et al. Radiative Heat Flux from Excited Atoms in a Radiofrequency Ion Thruster. Tech. Phys. Lett. 47, 201–204 (2021). https://doi.org/10.1134/S1063785021020188

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Keywords:

  • plasma
  • radiofrequency ion thruster
  • heat fluxes
  • excited atoms
  • screen grid
  • discharge chamber.