Doppler spectroscopy system for the plasma velocity measurements in SMOLA Helical Mirror

Anna A. Inzhevatkina; Aleksander V. Burdakov; Ivan A. Ivanov; Vladimir V. Postupaev; Anton V. Sudnikov

doi:10.1585/pfr.14.2402020

Doppler spectroscopy system for the plasma velocity measurements in SMOLA Helical Mirror

Anna A. Inzhevatkina, Aleksander V. Burdakov, Ivan A. Ivanov, Vladimir V. Postupaev, Anton V. Sudnikov

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

The measurements of the plasma velocity in the SMOLA helical mirror by observation of the Doppler shift of the Hα spectral lines emission were done by high spatial resolution spectrometer. A set of experiments was carried out with the different configuration and amplitude of the magnetic field. Potential is driven by plasma gun potentials. The radial distribution of the Doppler shift of the Hα line is used to calculate the velocity of neutral hydrogen, which gives the estimate of the plasma rotation velocity ω ≈ 10 ⁶ s ^-1 . The indicated velocity corresponds to the presence of the radial electric field E ~ 70V/cm. The dependence of the plasma rotation velocity on the radial profile of the electrostatic potential is discussed.

Original language	English
Article number	2402020
Number of pages	4
Journal	Plasma and Fusion Research
Volume	14
Issue number	Specialissue1
DOIs	https://doi.org/10.1585/pfr.14.2402020
Publication status	Published - 12 Feb 2019

Keywords

Doppler spectroscopy
Helical mirror
Optical diagnostics
Plasma confinement
Plasma rotation velocity
plasma rotation velocity
plasma confinement
helical mirror
optical diagnostics

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10.1585/pfr.14.2402020

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title = "Doppler spectroscopy system for the plasma velocity measurements in SMOLA Helical Mirror",

abstract = " The measurements of the plasma velocity in the SMOLA helical mirror by observation of the Doppler shift of the Hα spectral lines emission were done by high spatial resolution spectrometer. A set of experiments was carried out with the different configuration and amplitude of the magnetic field. Potential is driven by plasma gun potentials. The radial distribution of the Doppler shift of the Hα line is used to calculate the velocity of neutral hydrogen, which gives the estimate of the plasma rotation velocity ω ≈ 10 6 s -1 . The indicated velocity corresponds to the presence of the radial electric field E ~ 70V/cm. The dependence of the plasma rotation velocity on the radial profile of the electrostatic potential is discussed. ",

keywords = "Doppler spectroscopy, Helical mirror, Optical diagnostics, Plasma confinement, Plasma rotation velocity, plasma rotation velocity, plasma confinement, helical mirror, optical diagnostics",

author = "Inzhevatkina, {Anna A.} and Burdakov, {Aleksander V.} and Ivanov, {Ivan A.} and Postupaev, {Vladimir V.} and Sudnikov, {Anton V.}",

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doi = "10.1585/pfr.14.2402020",

language = "English",

volume = "14",

journal = "Plasma and Fusion Research",

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publisher = "The Japan Society of Plasma Science and Nuclear Fusion Research (JSPF)",

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T1 - Doppler spectroscopy system for the plasma velocity measurements in SMOLA Helical Mirror

AU - Inzhevatkina, Anna A.

AU - Burdakov, Aleksander V.

AU - Ivanov, Ivan A.

AU - Postupaev, Vladimir V.

AU - Sudnikov, Anton V.

PY - 2019/2/12

Y1 - 2019/2/12

N2 - The measurements of the plasma velocity in the SMOLA helical mirror by observation of the Doppler shift of the Hα spectral lines emission were done by high spatial resolution spectrometer. A set of experiments was carried out with the different configuration and amplitude of the magnetic field. Potential is driven by plasma gun potentials. The radial distribution of the Doppler shift of the Hα line is used to calculate the velocity of neutral hydrogen, which gives the estimate of the plasma rotation velocity ω ≈ 10 6 s -1 . The indicated velocity corresponds to the presence of the radial electric field E ~ 70V/cm. The dependence of the plasma rotation velocity on the radial profile of the electrostatic potential is discussed.

AB - The measurements of the plasma velocity in the SMOLA helical mirror by observation of the Doppler shift of the Hα spectral lines emission were done by high spatial resolution spectrometer. A set of experiments was carried out with the different configuration and amplitude of the magnetic field. Potential is driven by plasma gun potentials. The radial distribution of the Doppler shift of the Hα line is used to calculate the velocity of neutral hydrogen, which gives the estimate of the plasma rotation velocity ω ≈ 10 6 s -1 . The indicated velocity corresponds to the presence of the radial electric field E ~ 70V/cm. The dependence of the plasma rotation velocity on the radial profile of the electrostatic potential is discussed.

KW - Doppler spectroscopy

KW - Helical mirror

KW - Optical diagnostics

KW - Plasma confinement

KW - Plasma rotation velocity

KW - plasma rotation velocity

KW - plasma confinement

KW - helical mirror

KW - optical diagnostics

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