Long-Lived Pure Electron Plasma in Ring Trap-1

Haruhiko SAITOH; Zensho YOSHIDA; Junji MORIKAWA; Sho WATANABE; Yoshihisa YANO; Junko SUZUKI

doi:10.1585/pfr.2.045

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Long-Lived Pure Electron Plasma in Ring Trap-1

Haruhiko SAITOH, Zensho YOSHIDA, Junji MORIKAWA, Sho WATANABE, Yoshihisa YANO, Junko SUZUKI

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Keywords: non-neutral plasma, pure electron plasma, superconducting magnetospheric device, dipole field

JOURNAL FREE ACCESS

2007 Volume 2 Pages 045

DOI https://doi.org/10.1585/pfr.2.045

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Abstract

The Ring Trap-1 (RT-1) experiment succeeded in producing a long-lived (of the order 10² s), stable, non-neutral (pure electron) plasma. Electrons are confined by a magnetospheric dipole field. To eliminate a loss channel of the plasmas caused by support structures, a superconducting coil was magnetically levitated. This coil levitation drastically improved the confinement properties of the electron plasma compared to previous Prototype-Ring Trap (Proto-RT) experiments.

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