抄録
Studies of plasma injection into cusped geometries using magnetic probes are reported. From measurements of the variation of axial field, Bz, we learned that injected plasmas excluded Bz up to 5 KG and the plasma were trapped inside the magnetic bottle when the exit cusp was more than 9 KG. Radial variations of the field were also measured and instantaneous distributions are obtained. As an auxiliary measurement, a Kerr-cell camera was also available. Number of shots confirmed behaiviors of plasmas observed from magnetic probes.
