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Plasma physics

Plasma physics

Space weather phenomenon observed in the lab for the first time

21 Mar 2024 Isabelle Dumé
Artist's impression of a plasma confined in the RT-1 facility. The plasma appears as a glowing purple cloud within a toroidal chamber surrounded by magnetic field lines and containing red particles (representing high-temperature electrons) that are emitting white lines (representing the chorus waves)
Observation of spontaneous chorus emission in RT-1: When the plasma confined in the dipole magnetic field of RT-1 contains a significant fraction of high-temperature electrons (red particles), a chorus emission (white emission lines) forms with a variable frequency (sound height) similar to birdsong. Courtesy: National Institute for Fusion Science
Space weather events known as whistler mode chorus emissions have been observed in the laboratory fo

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Isabelle Dumé is a contributing editor to Physics World
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