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Abstract <p>Results of measurements of electron temperature and density in the divertor region of the Globus-M2 tokamak near the lower X-point were obtained using helium imaging spectroscopy. The profiles of plasma parameters were compared with the measurement results of the Thomson scattering diagnostics and simulation results using the SOLPS-ITER code. The measurement and simulation results agreed satisfactorily despite a large spatial error of the measurement results of the helium imaging spectroscopy diagnostics. A&#xa0;correlation was discovered between the temperature and density profiles and the phase of the sawtooth oscillations of soft X-ray radiation.</p>

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Measurements of the Electron Density and Temperature in the SOL of the Globus-M2 Tokamak with Helium Imaging Spectroscopy

  • 期刊论文

  • 发表日期：

    2025年11月1日

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  • D. D. Korobko,
  • V. M. Timokhin,
  • V. Yu. Sergeev,
  • M. K. Buts,
  • A. V. Gorbunov,
  • N. V. Ermakov,
  • N. S. Zhiltsov,
  • E. G. Kaveeva,
  • E. O. Kiselev,
  • K. A. Kukushkin,
  • G. S. Kurskiev,
  • Yu. V. Petrov,
  • V. A. Rozhansky,
  • N. V. Sakharov,
  • E. E. Tkachenko,
  • Yu. I. Tolpegina

摘要

Abstract

Results of measurements of electron temperature and density in the divertor region of the Globus-M2 tokamak near the lower X-point were obtained using helium imaging spectroscopy. The profiles of plasma parameters were compared with the measurement results of the Thomson scattering diagnostics and simulation results using the SOLPS-ITER code. The measurement and simulation results agreed satisfactorily despite a large spatial error of the measurement results of the helium imaging spectroscopy diagnostics. A correlation was discovered between the temperature and density profiles and the phase of the sawtooth oscillations of soft X-ray radiation.