title: ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð½Ð¾Ð¹ ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÑ Ð¿Ð»Ð°Ð·Ð¼Ñ ÑÐ¾Ð»ÑÐ³Ð¾Ð²ÑÐ¼ ÑÐ¿ÐµÐºÑÑÐ¾Ð¼ÐµÑÑÐ¾Ð¼ Ð² 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: The study of the electron temperature of the plasma foil spectrometer in the tokamak Â«Globus-M2Â»
Creators: name: Ð¢ÐºÐ°ÑÐµÐ½ÐºÐ¾, ÐÐ°Ð½Ð¸Ð¸Ð»
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: 2022
Subjects: Ð¿Ð»Ð°Ð·Ð¼Ð°
ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð½Ð°Ñ ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÐ°
Ð¼ÑÐ³ÐºÐ¾Ðµ ÑÐµÐ½ÑÐ³ÐµÐ½Ð¾Ð²ÑÐºÐ¾Ðµ Ð¸Ð·Ð»ÑÑÐµÐ½Ð¸Ðµ
ÑÐ¾ÑÐ¼Ð¾Ð·Ð½Ð¾Ðµ Ð¸Ð·Ð»ÑÑÐµÐ½Ð¸Ðµ
ÑÐ¾ÑÐ¾Ð¿ÑÐ¸ÐµÐ¼Ð½Ð¸ÐºÐ¸
Ð³Ð»Ð¾Ð±ÑÑ-Ð¼2
Ð¾ÑÐ½Ð¾ÑÐµÐ½Ð¸Ðµ Ð¸Ð½ÑÐµÐ½ÑÐ¸Ð²Ð½Ð¾ÑÑÐµÐ¹ ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð²
plasma
electron temperature
soft x-ray radiation
bremsstrahlung
photodetectors
globus-m2
signal intensity ratio

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description: The subject of the graduate qualification work is: Â«The study of the electron temperature of the plasma foil spectrometer in the tokamak Â«Globus-M2Â». The given work is devoted to the method of studying tokamak plasma using soft X-ray diagnostics. Such diagnostics can be used to measure the electron temperature of the plasma, to study the internal MHD oscillations of the plasma, and to determine the location of magnetic surfaces, to estimate the loss of electrons due to electron cyclotron emission ECE and runaway electrons, and the possibility of tracking ELM events. On the Globus-M2 spherical tokamak, to measure the electron temperature of the plasma, Thomson scattering diagnostics was installed, which collects data in 10 spatial regions of the plasma column from 5 to 20 times during the discharge of the tokamak. The high cost and limited lifetime of the laser prevented the continuous use of this diagnostic. Filter spectrometry provided continuous temperature measurement during the entire current pulse and could be used as a monitoring spectrometry during the entire experimental campaign. The spectrometer consists of four photodetectors, beryllium filters, collimators, and a stabilized power supply. The main feature of photodetectors is their high sensitivity and time resolution ~ 1 Î¼s, which makes it possible to detect fast processes in the tokamak plasma. Beryllium filters have increased values ââof strength and uniformity. The thicknesses of the foils mounted on four photodetectors were 15, 27 (later 127), 50, and 80 Âµm. A method for calculating the temperature from time based on the measured signals of a filter spectrometer is presented.The results obtained were compared with the results of Thomson scattering diagnostics, also installed on the tokamak.