Confinement properties in levitated spherator

In the levitated spherator, a plasma confinement time of 150 ∼ 200 msec was obtained at a plasma density of 2 × 1011cm−3 and an electron temperature of 1 eV. This confinement time is 1/3−1/6 of the classical decay time. It was observed that the confinement time increased with an increase in the electron temperature in the range of 0.1 to 5.0 eV. At higher electron temperature the plasma decay time was reduced with an increase in the electron temperature.