title: ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ ÐºÑÐ°ÐµÐ²ÑÑ Ð»Ð¾ÐºÐ°Ð»Ð¸Ð·Ð¾Ð²Ð°Ð½Ð½ÑÑ Ð¼Ð¾Ð´ Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ Ð²Ð¸Ð·ÑÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸ Ñ Ð½Ð°Ð¿ÑÑÐºÐ¾Ð¼ Ð½ÐµÐ¹ÑÑÐ°Ð»ÑÐ½Ð¾Ð³Ð¾ Ð³ÐµÐ»Ð¸Ñ Ð½Ð° 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: Investigation of edge localized modes using gas puff imaging with the injection of neutral helium on the Globus-M2 tokamak
Creators: name: Ð¤ÐµÐ´Ð¾ÑÐµÐ½ÐºÐ¾, ÐÐ¾Ð°Ð½Ð½Ð°
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: 2023
Subjects: Ð¿Ð»Ð°Ð·Ð¼Ð°
ÑÐ¸Ð»Ð°Ð¼ÐµÐ½ÑÑ
ÐºÑÐ°ÐµÐ²ÑÐµ Ð»Ð¾ÐºÐ°Ð»Ð¸Ð·Ð¾Ð²Ð°Ð½Ð½ÑÐµ Ð¼Ð¾Ð´Ñ
Ð¸Ð½Ð¶ÐµÐºÑÐ¸Ñ Ð³Ð°Ð·Ð¾Ð²ÑÑ ÑÑÑÑÐ¹
Ð³ÐµÐ»Ð¸ÐµÐ²Ð°Ñ ÑÐ¿ÐµÐºÑÑÐ¾ÑÐºÐ¾Ð¿Ð¸Ñ
plasma
filaments
edge localized modes
gas puff imaging
helium spectroscopy

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´Â  (Edge Localised Mode - ELM) Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð¿Ð¾Ð»Ð¸ÑÑÐ¾Ð¼Ð°ÑÐ¾ÑÐ° Ñ Ð²ÑÑÐ¾ÐºÐ¾ÑÐºÐ¾ÑÐ¾ÑÑÐ½Ð¾Ð¹ ÐºÐ°Ð¼ÐµÑÐ¾Ð¹ Ð²Ð¾ Ð²ÑÐµÐ¼Ñ Ð¸Ð½Ð¶ÐµÐºÑÐ¸Ð¸ Ð³ÐµÐ»Ð¸ÐµÐ²Ð¾Ð¹ ÑÑÑÑÐ¸ Ð½Ð° ÑÐ¾ÐºÐ°Ð¼Ð°ÐºÐµ Â«ÐÐ»Ð¾Ð±ÑÑ-Ð2Â». ÐÐ¾Ð»Ð¸ÑÑÐ¾Ð¼Ð°ÑÐ¾Ñ Ð¿Ð¾Ð·Ð²Ð¾Ð»ÑÐµÑ Ð¿Ð¾Ð»ÑÑÐ°ÑÑ Ð¸Ð·Ð¾Ð±ÑÐ°Ð¶ÐµÐ½Ð¸Ñ ÑÑÑÑÐ¸ Ð² ÑÐµÑÑÑÐµÑ ÑÐ¿ÐµÐºÑÑÐ°Ð»ÑÐ½ÑÑ ÐºÐ°Ð½Ð°Ð»Ð°Ñ, ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²ÑÑÑÐ¸Ñ ÑÐ¿ÐµÐºÑÑÐ°Ð»ÑÐ½ÑÐ¼ Ð»Ð¸Ð½Ð¸ÑÐ¼ Ð½ÐµÐ¹ÑÑÐ°Ð»ÑÐ½Ð¾Ð³Ð¾ Ð³ÐµÐ»Ð¸Ñ. ÐÐ¾Ð»ÑÑÐµÐ½Ð½ÑÐµ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½ÑÐµ Ð¸Ð·Ð¾Ð±ÑÐ°Ð¶ÐµÐ½Ð¸Ñ Ð¾Ð±ÑÐ°Ð±Ð°ÑÑÐ²Ð°ÑÑÑÑ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ð°, ÐºÐ¾ÑÐ¾ÑÑÐ¹ Ð¿Ð¾Ð·Ð²Ð¾Ð»ÑÐµÑ Ð²ÑÐ´ÐµÐ»ÑÑÑ Ð±ÑÑÑÑÑÐµ Ð¸Ð·Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ Ð¸Ð½ÑÐµÐ½ÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ ÑÑÐ°ÑÑÐºÐ¾Ð² Ð¸Ð·Ð¾Ð±ÑÐ°Ð¶ÐµÐ½Ð¸Ð¹, ÐºÐ¾ÑÐ¾ÑÑÐµ Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ð¾ ÑÐ²ÑÐ·Ð°ÑÑ Ñ Ñ ÑÐ°Ð·Ð²Ð¸ÑÐ¸ÐµÐ¼ Ð¿ÐµÑÐ¸ÑÐµÑÐ¸Ð¹Ð½ÑÑ Ð»Ð¾ÐºÐ°Ð»Ð¸Ð·Ð¾Ð²Ð°Ð½Ð½ÑÑ Ð¼Ð¾Ð´. Ð ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ ÑÐ°Ð±Ð¾ÑÑ Ð±ÑÐ»Ð° Ð¿ÑÐ¾Ð´ÐµÐ¼Ð¾Ð½ÑÑÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð° Ð¿ÑÐ¸Ð½ÑÐ¸Ð¿Ð¸Ð°Ð»ÑÐ½Ð°Ñ Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ð¾ÑÑÑ Ð½Ð°Ð±Ð»ÑÐ´ÐµÐ½Ð¸Ñ Ð¿ÐµÑÐ¸ÑÐµÑÐ¸Ð¹Ð½ÑÑ ÑÑÑÑÐºÑÑÑ Ð² Ð¿Ð»Ð°Ð·Ð¼Ðµ ÑÐ¾ÐºÐ°Ð¼Ð°ÐºÐ° Â«ÐÐ»Ð¾Ð±ÑÑ-Ð2Â» Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð²Ð¸Ð·ÑÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸ Ñ Ð½Ð°Ð¿ÑÑÐºÐ¾Ð¼ Ð½ÐµÐ¹ÑÑÐ°Ð»ÑÐ½Ð¾Ð³Ð¾ Ð³ÐµÐ»Ð¸Ñ. ÐÑÐ»Ð¾ Ð¾Ð±Ð½Ð°ÑÑÐ¶ÐµÐ½Ð¾, ÑÑÐ¾ Ð»Ð¾ÐºÐ°Ð»ÑÐ½ÑÐµ ÑÐ²ÐµÐ»Ð¸ÑÐµÐ½Ð¸Ñ Ð¸Ð½ÑÐµÐ½ÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ Ð½Ð° Ð¸Ð·Ð¾Ð±ÑÐ°Ð¶ÐµÐ½Ð¸ÑÑ ÐºÐ¾ÑÑÐµÐ»Ð¸ÑÑÑÑ Ð¿Ð¾ Ð²ÑÐµÐ¼ÐµÐ½Ð¸ Ñ ÑÐ°ÑÐ°ÐºÑÐµÑÐ½ÑÐ¼Ð¸ Ð´Ð»Ñ ELM ÑÐ¸Ð³Ð½Ð°Ð»Ð°Ð¼Ð¸ Ð¼Ð¾Ð½Ð¸ÑÐ¾ÑÐ½ÑÑ Ð´Ð¸Ð°Ð³Ð½Ð¾ÑÑÐ¸Ðº ÑÐ¾ÐºÐ°Ð¼Ð°ÐºÐ° â Ð¸Ð½ÑÐµÐ½ÑÐ¸Ð²Ð½Ð¾ÑÑÑ Ð»Ð¸Ð½Ð¸Ð¸ DÎ±, ÑÐ¸Ð³Ð½Ð°Ð» Ð´ÐµÑÐµÐºÑÐ¾ÑÐ° Ð¼ÑÐ³ÐºÐ¾Ð³Ð¾ ÑÐµÐ½ÑÐ³ÐµÐ½Ð¾Ð²ÑÐºÐ¾Ð³Ð¾ Ð¸Ð·Ð»ÑÑÐµÐ½Ð¸Ñ 15 Ð¼ÐºÐ¼ (SXR - soft x-ray) Ð¸ ÑÐ¸Ð³Ð½Ð°Ð» Ð¼Ð°Ð³Ð½Ð¸ÑÐ½ÑÑ Ð·Ð¾Ð½Ð´Ð¾Ð². Ð¢Ð°ÐºÐ¶Ðµ Ð½Ð°Ð±Ð»ÑÐ´Ð°Ð»Ð°ÑÑ Ð»Ð¾ÐºÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ñ Ð²ÑÐ¿ÑÑÐµÐº ÑÐ²ÐµÑÐµÐ½Ð¸Ñ Ð²Ð±Ð»Ð¸Ð·Ð¸ ÑÐµÐ¿Ð°ÑÐ°ÑÑÐ¸ÑÑ, ÑÑÐ¾ Ð¿Ð¾Ð·Ð²Ð¾Ð»ÑÐµÑ ÑÐ²ÑÐ·Ð°ÑÑ Ð¸Ñ Ñ ELM. ÐÑÐ¾Ð¼Ðµ ÑÑÐ¾Ð³Ð¾, Ð±ÑÐ»Ð° Ð¿ÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½Ð° Ð¼Ð¾Ð´ÐµÑÐ½Ð¸Ð·Ð°ÑÐ¸Ñ Ð¾Ð¿ÑÐ¸ÑÐµÑÐºÐ¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ñ Ð´Ð»Ñ ÑÐ»ÑÑÑÐµÐ½Ð¸Ñ Ð²ÑÐµÐ¼ÐµÐ½Ð½Ð¾Ð³Ð¾ ÑÐ°Ð·ÑÐµÑÐµÐ½Ð¸Ñ Ð´Ð¸Ð°Ð³Ð½Ð¾ÑÑÐ¸ÐºÐ¸. Ð¡Ð¾ÑÑÐ°Ð²Ð»ÐµÐ½ Ð¿Ð»Ð°Ð½ ÑÑÐµÐ½Ð´Ð¾Ð²ÑÑ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ¾Ð² Ð´Ð»Ñ Ð¾ÑÑÐ°Ð±Ð¾ÑÐºÐ¸ Ð¿ÑÐ¾ÑÐµÐ´ÑÑÑ Ð¸Ð´ÐµÐ½ÑÐ¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¸ ELM, Ð¸ ÑÐ°ÐºÐ¶Ðµ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð° Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð° ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ¾Ð² Ð½Ð° ÑÐ¾ÐºÐ°Ð¼Ð°ÐºÐµ Ñ Ð¼Ð¾Ð´ÐµÑÐ½ÐµÐ·Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð¹ Ð¾Ð¿ÑÐ¸ÑÐµÑÐºÐ¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ð¾Ð¹ Ð±ÐµÐ· Ð¿Ð¾Ð»Ð¸ÑÑÐ¾Ð¼Ð°ÑÐ¾ÑÐ°, ÑÑÐ¾ Ð¿Ð¾Ð·Ð²Ð¾Ð»Ð¸Ñ Ð½Ð°Ð±Ð»ÑÐ´Ð°ÑÑ Ð¿Ð»Ð°Ð·Ð¼Ñ Ð²Ð¾ Ð²ÑÐµÐ¼ Ð´Ð¸Ð°Ð¿Ð°Ð·Ð¾Ð½Ðµ Ð²Ð¸Ð´Ð¸Ð¼Ð¾Ð³Ð¾ ÑÐ²ÐµÑÐ° Ð¸ Ð·Ð½Ð°ÑÐ¸ÑÐµÐ»ÑÐ½Ð¾ ÑÐ¼ÐµÐ½ÑÑÐ¸ÑÑ Ð²ÑÐµÐ¼Ñ ÑÐºÑÐ¿Ð¾Ð·Ð¸ÑÐ¸Ð¸ Ð¾ÑÐ´ÐµÐ»ÑÐ½ÑÑ ÐºÐ°Ð´ÑÐ¾Ð², ÑÑÐ¾ Ð¼Ð¾Ð¶ÐµÑ ÑÐ´ÐµÐ»Ð°ÑÑ Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½ÑÐ¼ Ð½Ð°Ð±Ð»ÑÐ´ÐµÐ½Ð¸Ðµ Ð½Ð¸ÑÐµÐ²Ð¸Ð´Ð½ÑÑ ÑÑÑÑÐºÑÑÑ (ÑÐ¸Ð»Ð°Ð¼ÐµÐ½ÑÐ¾Ð²) Ð¸ Ð¸Ð·Ð¼ÐµÑÐµÐ½Ð¸Ðµ Ð¸Ñ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð².
description: The purpose of this work is to register Edge Localized Modes (ELM) using a polychromator with a high-speed camera during the injection of a neutral helium jet on the Globus-M2 tokamak. The polychromator makes it possible to obtain jet images in four spectral channels, which correspond to neutral helium spectral lines. The obtained experimental data is processed using an algorithm that allows to highlight the rapid changes in the intensity of image areas that can be associated with ELM. As a result, the fundamental possibility of observing peripheral structures in the plasma of the Globus-M2 tokamak using gas puff imaging was demonstrated. It was found that local intensity increases in the images and correlates in time with the signals of tokamak monitor diagnostics (DÎ±, SXR, and magnetic probes), which shows that an ELM event might be present. The localization of flashes of light near the separatrix was also shown. This makes it possible to associate them with the ELM. In addition, the optical system was upgraded to improve the temporal resolution of diagnostics. Further experiments with the updated optical system without a polychromator are planned. That experiments will make it possible to observe plasma in the entire visible light range and significantly reduce the exposure time of individual frames, which can make it possible to observe filamentary structures (filaments) and measure their parameters.