Resources

PANTA

Plasma Assembly for Nonlinear Turbulence Analysis

A device that generates plasma with helicon waves and excites turbulence. The excited turbulence and the plasma transport driven by the turbulence are observed simultaneously at multiple points with a multi-channel probe. Simultaneous multi-point observation is extremely difficult in space and fusion plasmas, and this device will clarify the basic physics of turbulence.

Plasma radius	4 cm - 9 cm
Plasma length	4.05 m
Helicon source	7 MHz, < 10 kW, Ar/He
Central electron temperature	2-3 eV
Central electron density	1×1019 m-3
Magnetic field coordination	Mirror / Linear / Divergence / Cusp
Magnetic field strength	0.01−0.15 T
Width	0.1s ~ Steady
Measuring instrument	Langmuir probe, Ball-pen probe, 3-D tomography system, microwave reflectometer, spectrometer, laser-induced fluorescence
First Plasma	2009

PLATO

PLAsma Turbulence Observatory

A device that generates torus plasma and excites turbulence. The study of turbulent plasmas confined in a torus is important for the essential understanding of various phenomena occurring in nature. For example, it can greatly contribute to our understanding of velocity discontinuities in the solar interior, transport around an accretion disk, and the mechanism of dynamo field generation. Fusion also uses torus plasma. Plasmas that are hotter than linear plasmas are measured in a non-contact manner over the entire wavelength range by the integrated observation system.

Principal radius	0.6 m
Mean plasma radius	0.2 m
Working Gas	H, He
>Magnetic field strength	0.4 T
Flat top	200 ms
Measuring instrument	Triple HIBP, Tomography
First Plasma	2020