Abstract
We have already compared Patterson's intensifying screens and Kyokko intensifying screens on the basis of intensifying coefficient as well as the method of examination of sharpness used by K. Wiiratlin. Also, we have made comparison of all domestic screens while improving our ways of estimation. However, all these methoes are not simple, and accordingly necessitate special apparatuses or instruments. In the present report, an easy and practical way of estimating qualities of intensifying screens and its application are explained. The method is to simply radiograph using an X-ray apparatus.
