Pulsed power driven cylindrical shock physics experiments are being performed at the PEGASUS facility at Los Alamos National Laboratory. A time dependent, axial X-ray imaging capability forms a subset of the measurements to quantify material behavior during shock propagation. 20 ns pulsed W target X-ray sources with about 10 mR at 1 m form the backlighter. Inorganic scintillators generate time dependent, visible images, which are relayed to a shuttered, microchannel plate intensifier imaging system coupled to electronic video readouts. The dynamic range, sensitivity, scene contrast, and system spatial resolution are optimized to specific experiments via optimization of fluor response to both X-ray energy and light output time response. In addition, a series of calibration data are taken to permit characterizing density information through postevent image processing. This dataset includes flat field and step wedge images. The flat field is particularly important due to the relatively large spatial variation in the X-ray dose resulting from the close proximity (60 cm) of the source to the imager.