Topic/Type: 1.1 Space & astrophysical plasmas, Poster

### Electron current drive by rotating magnetic field in a radiation shielding plasma for a space elevator

H. Shionoya1, T. Takahashi1, H. Itagaki2, T. Asai2

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

A space elevator is a concept of transportation system to lift up a craft with a strong cable to the geostationary orbit. By the space elevator the cost of transportation per unit weight reduces significantly than the one by a chemical rocket. Technological issues to overcome are, for example, development of a strong and light material of the cable and radiation shielding from high-energy charged particle in the Van Allen radiation belts. This study focuses on radiation shielding by a magnetic field formed in a plasma sustained by a rotating magnetic field (RMF). We calculate orbits of electrons whose temperature and density are 1 eV and $\small 10^8$ m$\small ^{-3}$ in the radiation belts. Varying the RMF frequency, we estimate the electron current and magnetic field generated. Possibility of magnetic radiation shield is investigated numerically.