Polarity effect on the behavior of gas-puff z-pinch plasma produced by IPP system

Hot spots produced by gas-puff z-pinch plasma which are high energy density plasma regions radiate intensive soft X-rays. The gas-puff z-pinch is expected to have industrial applications such as soft X-ray lithography, microscopy and in lasers. In these cases, the scattering of hot spots is important when the gas-puff z-pinch plasma is used as a point source of soft X-rays. Previous results in our study showed the reduction of radial displacement of hot spots in positive voltage shots by using an IPP (Inductive Pulsed Power) system. In this paper, the voltage polarity effects on the gas-puff z-pinch plasma behavior, spatial distribution of hot spots and soft X-ray emission are described.