title: ÐÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ðµ Ð´Ð¸Ð°Ð³Ð½Ð¾ÑÑÐ¸ÐºÐ¸ Ð¼Ð½Ð¾Ð³Ð¾ÑÐ°ÑÑÐ¾ÑÐ½Ð¾Ð³Ð¾ Ð´Ð¾Ð¿Ð¿Ð»ÐµÑÐ¾Ð²ÑÐºÐ¾Ð³Ð¾ Ð¾Ð±ÑÐ°ÑÐ½Ð¾Ð³Ð¾ ÑÐ°ÑÑÐµÑÐ½Ð¸Ñ Ð´Ð»Ñ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¿ÐµÑÐ¸ÑÐµÑÐ¸Ð¹Ð½ÑÑ Ð»Ð¾ÐºÐ°Ð»Ð¸Ð·Ð¾Ð²Ð°Ð½Ð½ÑÑ Ð¼Ð¾Ð´ Ð½Ð° ÑÑÐµÑÐ¸ÑÐµÑÐºÐ¾Ð¼ ÑÐ¾ÐºÐ°Ð¼Ð°ÐºÐµ Â«ÐÐ»Ð¾Ð±ÑÑ-Ð2Â»
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Application of multi-frequency Doppler backscattering diagnostics for studying edge localized modes on the spherical tokamak Globus-M2
Creators: name: Ð¢Ð¾ÐºÐ°ÑÐµÐ², ÐÑÑÐµÐ½Ð¸Ð¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2024
Subjects: Ð²ÑÑÐ¾ÐºÐ¾ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÐ½Ð°Ñ Ð¿Ð»Ð°Ð·Ð¼Ð°
ÑÐ¾ÐºÐ°Ð¼Ð°Ðº
Ð´Ð¾Ð¿Ð¿Ð»ÐµÑÐ¾Ð²ÑÐºÐ¾Ðµ Ð¾Ð±ÑÐ°ÑÐ½Ð¾Ðµ ÑÐ°ÑÑÐµÑÐ½Ð¸Ðµ
ÑÐ°Ð´Ð¸Ð°Ð»ÑÐ½Ð¾Ðµ ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¾Ðµ Ð¿Ð¾Ð»Ðµ
Ð¿ÐµÑÐ¸ÑÐµÑÐ¸Ð¹Ð½ÑÐµ Ð»Ð¾ÐºÐ°Ð»Ð¸Ð·Ð¾Ð²Ð°Ð½Ð½ÑÐµ Ð¼Ð¾Ð´Ñ
high-temperature plasma
tokamak
Doppler backscattering
radial electric field
edge localized modes

description: Ð¦ÐµÐ»ÑÑ Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ ÑÐ²Ð»ÑÐµÑÑÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¿ÐµÑÐ¸ÑÐµÑÐ¸Ð¹Ð½ÑÑ Ð»Ð¾ÐºÐ°Ð»Ð¸Ð·Ð¾Ð²Ð°Ð½Ð½ÑÑ Ð¼Ð¾Ð´ (ELM), Ð²Ð¾Ð·Ð½Ð¸ÐºÐ°ÑÑÐ¸Ñ Ð² Ð¿Ð»Ð°Ð·Ð¼Ðµ ÑÐ¾ÐºÐ°Ð¼Ð°ÐºÐ°. ELM Ð¼Ð¾Ð³ÑÑ Ð¿ÑÐ¸Ð²ÐµÑÑÐ¸ Ðº Ð¿Ð¾Ð²ÑÐµÐ¶Ð´ÐµÐ½Ð¸Ñ ÑÐµÑÐ¼Ð¾ÑÐ´ÐµÑÐ½Ð¾Ð³Ð¾ ÑÐµÐ°ÐºÑÐ¾ÑÐ°, Ð¿Ð¾ÑÑÐ¾Ð¼Ñ ÑÐ²Ð»ÑÑÑÑÑ Ð°ÐºÑÑÐ°Ð»ÑÐ½ÑÐ¼ Ð¾Ð±ÑÐµÐºÑÐ¾Ð¼ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ. ÐÐ»Ñ Ð´Ð¾ÑÑÐ¸Ð¶ÐµÐ½Ð¸Ñ ÑÐµÐ»Ð¸ ÑÐ°Ð±Ð¾ÑÑ Ð±ÑÐ»Ð° Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð° Ð´Ð¸Ð°Ð³Ð½Ð¾ÑÑÐ¸ÐºÐ° Ð´Ð¾Ð¿Ð¿Ð»ÐµÑÐ¾Ð²ÑÐºÐ¾Ð³Ð¾ Ð¾Ð±ÑÐ°ÑÐ½Ð¾Ð³Ð¾ ÑÐ°ÑÑÐµÑÐ½Ð¸Ñ (ÐÐÐ ), ÑÑÑÐ°Ð½Ð¾Ð²Ð»ÐµÐ½Ð½Ð°Ñ Ð½Ð° ÑÑÐµÑÐ¸ÑÐµÑÐºÐ¾Ð¼ ÑÐ¾ÐºÐ°Ð¼Ð°ÐºÐµ ÐÐ»Ð¾Ð±ÑÑ-Ð2. Ð ÐµÐ·ÑÐ»ÑÑÐ°ÑÐ°Ð¼Ð¸ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ Ð´Ð¸Ð°Ð³Ð½Ð¾ÑÑÐ¸ÐºÐ¸ ÑÐ²Ð»ÑÑÑÑÑ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ñ ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¿Ð¾Ð»Ñ Ð² Ð¿Ð»Ð°Ð·Ð¼Ðµ ÑÐ¾ÐºÐ°Ð¼Ð°ÐºÐ°, Ð° ÑÐ°ÐºÐ¶Ðµ Ð¾ÑÐ½Ð¾ÑÐ¸ÑÐµÐ»ÑÐ½ÑÐ¹ ÑÑÐ¾Ð²ÐµÐ½Ñ ÑÑÑÐ±ÑÐ»ÐµÐ½ÑÐ½Ð¾ÑÑÐ¸. ÐÐ»Ð°Ð³Ð¾Ð´Ð°ÑÑ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¼Ð½Ð¾Ð³Ð¾ÑÐ°ÑÑÐ¾ÑÐ½Ð¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ñ ÐÐÐ  Ð±ÑÐ»Ð¸ Ð¿Ð¾ÑÑÑÐ¾ÐµÐ½Ñ Ð¿ÑÐ¾ÑÐ¸Ð»Ð¸ ÑÐ°Ð´Ð¸Ð°Ð»ÑÐ½Ð¾Ð³Ð¾ ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¿Ð¾Ð»Ñ Ð´Ð»Ñ ÑÐ°Ð´Ð¸ÑÑÐ¾Ð² Ï = 0.65-1.1 Ð²Ð¾ Ð²ÑÐµÐ¼Ñ ÑÐ¸Ð½ÑÑÐ¾Ð½Ð¸Ð·Ð¾Ð²Ð°Ð½Ð½ÑÑ Ð¸ Ð´ÐµÑÐ¸Ð½ÑÑÐ¾Ð½Ð¸Ð·Ð¾Ð²Ð°Ð½Ð½ÑÑ Ð¿ÐµÑÐ¸ÑÐµÑÐ¸Ð¹Ð½ÑÑ Ð»Ð¾ÐºÐ°Ð»Ð¸Ð·Ð¾Ð²Ð°Ð½Ð½ÑÑ Ð¼Ð¾Ð´. ÐÐ¾ÐºÐ°Ð·Ð°Ð½Ð¾, ÑÑÐ¾ Ð²Ð¾ Ð²ÑÐµÐ¼Ñ Ð½Ð¸Ñ Ð½Ð°Ð±Ð»ÑÐ´Ð°ÐµÑÑÑ ÑÐ²ÐµÐ»Ð¸ÑÐµÐ½Ð¸Ðµ Ð¿Ð¾ Ð¼Ð¾Ð´ÑÐ»Ñ ÑÐ°Ð´Ð¸Ð°Ð»ÑÐ½Ð¾Ð³Ð¾ ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¿Ð¾Ð»Ñ Ð¸ ÑÐ²ÐµÐ»Ð¸ÑÐµÐ½Ð¸Ðµ ÑÑÐ¾Ð²Ð½Ñ ÑÑÑÐ±ÑÐ»ÐµÐ½ÑÐ½Ð¾ÑÑÐ¸ Ð½Ð° Ð²ÑÐµÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð½ÑÑ ÑÐ°Ð´Ð¸ÑÑÐ°Ñ. ÐÑÐ¾Ð¼Ðµ ÑÐ¾Ð³Ð¾, Ð±ÑÐ»Ð¾ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¾ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ðµ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ¾Ð² ÑÐ¾ ÑÐ»ÑÑÐ°ÐµÐ¼ ÐºÐ¾Ð»ÐµÐ±Ð°Ð½Ð¸Ð¹ Ð¿ÑÐµÐ´ÐµÐ»ÑÐ½Ð¾Ð³Ð¾ ÑÐ¸ÐºÐ»Ð° (LCO), ÐºÐ¾ÑÐ¾ÑÑÐµ ÑÐ°ÐºÐ¶Ðµ Ð½Ð°Ð±Ð»ÑÐ´Ð°Ð»Ð¸ÑÑ Ð½Ð° ÑÐ¾ÐºÐ°Ð¼Ð°ÐºÐµ ÐÐ»Ð¾Ð±ÑÑ-Ð2. ÐÐ¾ÐºÐ°Ð·Ð°Ð½Ð¾, ÑÑÐ¾ Ð²Ð¾ Ð²ÑÐµÐ¼Ñ Ð½Ð¸Ñ Ð½Ð°Ð±Ð»ÑÐ´Ð°ÐµÑÑÑ Ð¸Ð½Ð¾Ðµ Ð¿Ð¾Ð²ÐµÐ´ÐµÐ½Ð¸Ðµ ÑÐ°Ð´Ð¸Ð°Ð»ÑÐ½Ð¾Ð³Ð¾ ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¿Ð¾Ð»Ñ, ÑÐ¾ÑÑ ÑÑÐ¾Ð²ÐµÐ½Ñ ÑÑÑÐ±ÑÐ»ÐµÐ½ÑÐ½Ð¾ÑÑÐ¸ ÑÐ°ÐºÐ¶Ðµ Ð¿Ð¾Ð²ÑÑÐ°ÐµÑÑÑ. Ð¢Ð°ÐºÐ¸Ð¼ Ð¾Ð±ÑÐ°Ð·Ð¾Ð¼, Ð² ÑÐ¾Ð´Ðµ Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð¸Ñ Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ Ð¿Ð¾ÐºÐ°Ð·Ð°Ð½Ð¾, ÑÑÐ¾ Ð´Ð¸Ð°Ð³Ð½Ð¾ÑÑÐ¸ÐºÐ° Ð´Ð¾Ð¿Ð¿Ð»ÐµÑÐ¾Ð²ÑÐºÐ¾Ð³Ð¾ Ð¾Ð±ÑÐ°ÑÐ½Ð¾Ð³Ð¾ ÑÐ°ÑÑÐµÑÐ½Ð¸Ñ ÑÐ²Ð»ÑÐµÑÑÑ Ð¼Ð¾ÑÐ½ÑÐ¼ Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ Ð´Ð»Ñ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¿ÐµÑÐ¸ÑÐµÑÐ¸Ð¹Ð½ÑÑ Ð»Ð¾ÐºÐ°Ð»Ð¸Ð·Ð¾Ð²Ð°Ð½Ð½ÑÑ Ð¼Ð¾Ð´.
description: The aim of this work is to study edge localized modes (ELM) arising in the tokamak plasma. ELM can cause damage to a thermonuclear reactor, therefore they are an important object of research. To achieve the aim of the work, the Doppler backscattering (DBS) diagnostics was applied, installed on the spherical tokamak Globus-M2. The results of the diagnostic application are the values of the electric field in the tokamak plasma, as well as the relative level of turbulence. Due to the use of a multi-frequency DBS system, radial electric field profiles were constructed for radii Ï = 0.65-1.1 during synchronized and desynchronized edge localized modes. It is shown that during them there is an increase in the amplitude of the radial electric field and an increase in the level of turbulence at all studied radii. In addition, the results were compared with the case of limit cycle oscillations (LCO), which were also observed on the Globus-M2 tokamak. It is shown that a different behavior of the radial electric field is observed during them, although the level of turbulence also increases. Thus, in the course of this work, it is shown that Doppler backscattering diagnostics is a powerful method for studying edge localized modes.