Topic/Type: 1.2 Fusion Plasmas (magnetic & inertial confinement), Poster

### Toroidal Spin-up of a field-reversed configuration plasma

T. Takahashi1, T. Ikeda1, T. Asai2, T. Takahashi2

1 Gunma University, 1-5-1 Tenjin-cho, Kiryu 376-8515, Japan
2 Nihon University,Tokyo 101-8308, Japan

A field-reversed configuration (FRC) plasma is observed in various experiments to rotate in the toroidal direction. Toroidal rotation of the plasma causes the $\small n=2$ rotational instability which leads the plasma to disruption. Here, a particle simulation is carried out in order to find the origin of spin-up of the FRC plasma. It is found that the resistive flux decay results in the toroidal rotation and the obtained time evolution of toroidal flow velocity has good agreement with the experimental results measured at the Nihon University Compact Torus Experiment-III device.