Devices and some methods of pulsed radiography of high-speed processes

The basic design of the PIR pulsed x-ray systems developed at the Institute of Hydrodynamics, of the Siberian Division of the Russian Academy of Sciences is described and their parameters are compared with those of the well-known Hewlett-Packard and Scanditronics devices. Some methods of increasing the resolution of radiography using the great spectral width of radiation of the PIR pulsed devices are described. An example of extraction of the density distribution in several sections of a cavitating liquid utilizing simple methods of computer processing of images is given.