Charge exchange radiation diagnostic with gas jet target for measurement of plasma flow velocity in the linear magnetic trap

A. V. Sandomirsky, A. A. Lizunov

Результат исследования: Научные публикации в периодических изданияхстатья по материалам конференциирецензирование

Аннотация

The study of longitudinal fluxes of energy and particles is one of the most important fundamental problems in the physics of open magnetic traps. The solution to this problem is the key to the successful implementation of fusion power in linear magnetic systems. The plasma electrostatic ambipolar potential largely determines the physics of longitudinal transport of particles and energy. In this work, we used the spectroscopic method CXRS (Charge eXchange Recombination Spectroscopy) to measure the plasma ion velocity distribution via the analysis of light emitted in this atomic process. The experiments were carried out in the gas dynamic trap (GDT), which is a linear plasma confinement system with an axially symmetric magnetic field configuration. We measured plasma potential and ion temperature of two plasma components: the main (hydrogen and deuterium) and the helium impurity. The paper presents the emission spectra of the lines H-α (656.28 nm) and He-I (667.8 nm). This method was applied for the first time to measure the spatial profile of the ambipolar potential in an open magnetic trap.

Язык оригиналаанглийский
Номер статьи012032
ЖурналJournal of Physics: Conference Series
Том2036
Номер выпуска1
DOI
СостояниеОпубликовано - 12 окт 2021
Событие7th International Conference on Laser and Plasma Research and Technologies, LaPlas 2021 - Moscow, Virtual, Российская Федерация
Продолжительность: 23 мар 202126 мар 2021

Предметные области OECD FOS+WOS

  • 1.03 ФИЗИЧЕСКИЕ НАУКИ И АСТРОНОМИЯ

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