Abstract: A pair of front and back intensifying screens is disclosed capable of providing a sharp imagewise exposure of a dual coated silver halide radiographic element to light when the screens are imagewise exposed to X radiation predominantly of an energy level below 40 keV. The front intensifying screen is comprised of a fluorescent layer having modulation transfer factors greater than those of reference curve A in FIG. 3 and capable of attenuating by 20 to 60 percent a reference X radiation exposure produced by a Mo target tube operated at 28 kVp with a three phase power supply, wherein the reference X radiation exposure passes through 0.03 mm of Mo and 4.5 cm of poly(methyl methacrylate) to reach the fluorescent layer mounted 25 cm from a Mo anode of the target tube and attenuation is measured 50 cm beyond the fluorescent layer. The back intensifying screen has modulation transfer factors greater than those of reference curve B in FIG.