Coherence-imaging spectroscopy for 2D distribution of ion temperature and flow velocity in a laboratory magnetosphere

A coherence-imaging spectroscopy (CIS) technique was developed to investigate plasma confinement in a dipole system that imitates a planetary magnetosphere. Optical interference generated using birefringent crystals enables two-dimensional Doppler spectroscopy to measure ion temperatures and flow ve...

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Bibliographic Details
Published in:Review of scientific instruments 2018-10, Vol.89 (10), p.10D133-10D133
Main Authors: Nakamura, K., Nishiura, M., Takahashi, N., Yoshida, Z., Kenmochi, N., Sugata, T., Katsura, S., Howard, J.
Format: Article
Language:English
Subjects:
Coherence
Confinement
Dipoles
Flow velocity
Ion temperature
Magnetospheres
Plasma
Plasmas (physics)
Scientific apparatus & instruments
Spectrum analysis
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Summary:A coherence-imaging spectroscopy (CIS) technique was developed to investigate plasma confinement in a dipole system that imitates a planetary magnetosphere. Optical interference generated using birefringent crystals enables two-dimensional Doppler spectroscopy to measure ion temperatures and flow velocities in plasmas. CIS covers the entire dynamics of the pole areas as well as of the core and edge areas on a dipole confinement device. The two-dimensional visualization of these quantities in the magnetospheric-plasma device RT-1 was demonstrated using CIS.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.5037124