Physical aspects of high intensity X-ray emission from X-pinch

The processes of wire X-pinch electrical explosion are analyzed to develop the understanding of physical phenomena which leads to generation of short, high intensive X-ray pulse. The model of formation and subsequent development of hot plasma in the region of narrow X-pinch neck is investigated. Main attention is given to MHD cumulative processes which is reasonable for creation of point-like regions of non-equilibrium compressed plasma with high temperatures and densities. The main physical properties of such type plasma are discussed.