title: ÐÐ±ÑÐ°Ð±Ð¾ÑÐºÐ° Ð´Ð°Ð½Ð½ÑÑ ÑÐ¸ÑÑÐ¾Ð²ÑÑ Ð¿Ð¾Ð»Ð¸Ñ ÑÐ¾Ð¼Ð°ÑÐ¾ÑÐ¾Ð² ÑÐ¾Ð¼ÑÐ¾Ð½Ð¾Ð²ÑÐºÐ¾Ð³Ð¾ ÑÐ°ÑÑÐµÑÐ½Ð¸Ñ ÑÐ¾ÐºÐ°Ð¼Ð°ÐºÐ° ÐÐ»Ð¾Ð±ÑÑ-Ð2
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: The Method of Thomson Scattering diagnostics Signal Acquisition And Processing
Creators: name: ÐÐ¸Ð»ÑÑÐ¾Ð², ÐÐ¸ÐºÐ¸Ñ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: 2020
Subjects: Ð½ÐµÐºÐ¾Ð³ÐµÑÐµÐ½ÑÐ½Ð¾Ðµ ÑÐ¾Ð¼ÑÐ¾Ð½Ð¾Ð²ÑÐºÐ¾Ðµ ÑÐ°ÑÑÐµÑÐ½Ð¸Ðµ
Ð¿Ð»Ð°Ð·Ð¼Ð°
ÑÐ¾ÐºÐ°Ð¼Ð°Ðº
Ð»Ð°Ð²Ð¸Ð½Ð½ÑÐ¹ ÑÐ¾ÑÐ¾Ð´Ð¸Ð¾Ð´
Ð¿Ð¾Ð»Ð¸Ñ ÑÐ¾Ð¼Ð°ÑÐ¾Ñ
Ð»Ð°Ð·ÐµÑ
ÑÐ¿ÐµÐºÑÑÐ¾ÑÐºÐ¾Ð¿Ð¸Ñ
incoherent thomson scattering
plasma
tokamak
avalanche photodiode
polychromator
laser
spectroscopy

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description: This work is devoted to development of the data acquisition and processing algorithm for Thomson scattering applications based on filter polychromators with transient recorders. The device was designed for Globus-M2 spherical tokamak. The following goals were achieved: 1. Perform spectral and absolute level calibrations of the Thomson scattering diagnostic 2. Analyze the main sources of Thomson scattering measurements errors. 3. Develop of Thomson scattering signal error estimation in a single measurement on real plasma. 4. Perform electron temperature and density measurements in Globus-M2 plasma. The implementation of the developed algorithm of processing Thomson scattering data is the summarizing result of this work. The work was performed accessing the Unique Scientific Facility âSpherical tokamak Globus-Mâ which is incorporated in the Federal Joint Research Center âMaterial science and characterization in advanced technologyâ of Ioffe institute. The special test bench was built in order to perform model experiments on plasma noise simulation and detector thermal stability. The work proves the concepts of the developed polychromator and allows reducing inaccuracy of electron temperature and density measurements by means of Thomson scattering diagnostic. The implemented processing algorithm was tested in real plasma experiment and now is used as every-day instrument.