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Information × Registration Number 0215U001729, 0113U006380 , R & D reports Title Development and introduction of new plasma diagnostics on the basis of multifrequency microwave scatterometry at Uragan-2M device and plasma confinment in combined magnetic configuration of stellarator with open trap popup.stage_title Head Voitsenya Vladimir Sergeevich, Доктор фізико-математичних наук Registration Date 28-04-2015 Organization National Science Center "Kharkiv Institute of Physics and Technology popup.description2 A new method of measuring the plasma density using dual-polarization interferometry was implemented at the facility Uragan-2M for the first time. In this way all data were obtained concerning the plasma density, which are given in the report. Modernization of the crankshaft antenna in order to improve the reliability of plasma production was carried out. Before that this antenna could produce plasma only at high electric voltages. Modernization was to expand of crankshaft modulation of the central strap. Expanding modulation led to a change of the strap design because the strap could no longer be put into in the installation through the existing pipe. The upgraded antenna was installed and tested in the setup. The toroidal field coil №6 of Uragan-2M has been switched off , so the hybrid configuration stellarator-mirror (open trap) could be created. Search the satisfactory operation regime has been carried out changing the pressure of the neutral gas and the magnetic system parameter kfi (ratio of the toroidal magnetic field induced by the helical winding to the full toroidal field). In the range kfi=0.24-0.32 plasma is not produced. Reliable plasma production was registered at lower kfi, and dense plasma is build-up at different pressures of the neutral gas. This is consistent with results of previous theoretical calculations. Also, the heating of the plasma electrons was recorded using soft X-ray emission and analysis of carbon impurities CV optical emission. Product Description popup.authors Євсюков Олександр Васильович Барон Дем'ян Ілліч Григор'єва Людмила Іванівна Коновалов Володимир Григорович Коровін Валерій Борисович Котенко Володимир Григорович Красюк Олександр Юрійович Кулик Юлія Сергіївна Лозін Олексій Васильович Махов Михайло миколайович Миронов Валерій Костянтинович Моісеєнко Володимир Євгенович Ожерельєв Федор Іванович Пашнєв Валерій Костянтинович Рижков Іван Володимирович Солодовченко Сергій Іванович Сороковий Едуард Леонідович Чернишенко Віктор Якович Шаповал анатолій миколайович Штань анатолій Федорович popup.nrat_date 2020-04-02 Close