It is necessary to make adjustments on fading effects when experiments are made for acquiring numerous data at different irradiation times on the photostimulable phosphor plate. However, since the adjusted coefficient for the fading effect that suits every researcher's experimental condition is rarely published, each researcher needs to acquire his own fading data. The purpose of our study is to develop an experimental procedure that enables us to acquire the data and, at the same time, to adjust the fading effect. Under the general method for obtaining the characteristic curve, a set of data having different mAs conditions was stored on the plate. On the other hand, our method is to irradiate the x-ray twice consecutively under the same mAs condition. We repeated this process under different mAs experimental conditions. After receiving a series of data set by this method, we were able to differentiate the adjusted fading coefficients from the two sets of the data under the same experimental conditions. As a result, we were able to correct any fading effect with a 10% accuracy level.
