Results are presented from a wide variety of X-pinch experiments with
metallic wires and dielectric fibers that were carried out in the diod
e of the BM high-current generator at the Lebedev Institute. Optical-r
ange high-speed photography combined with conventional X-ray radiograp
hy yielded visual data on the plasma dynamics. An analysis of the obta
ined results makes it possible to construct a possible picture of the
dynamics of various processes in an X-pinch.