Long-Lived Pure Electron Plasma in Ring Trap-1

抄録

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.