RADIATION THREE-DIMENSIONAL PICTURE PHOTOGRAPHING DEVICE

摘要

PURPOSE:To provide the information on not only the radiation picture showing the three-dimensional structure of a subject to be photographed but also the material in the three-dimensional structure of the subject by separating and detecting the energy intensity of the Compton scattering radiation from the subject. CONSTITUTION:An X-ray beam 13 from an X-ray generator 11 irradiates a subject 14, and a Compton scattering X-ray 15 generated from the beam 13 and passing through a slit 16 is detected by means of a sensor 17. The output of the sensor 17 is inputted to discriminators 19a and 19b to pass the output with different voltage pulse more than the prescribed level. The passed voltage pulse is counted by counters 20a and 20b. In short, the energy intensity of the Compton scattering X-ray 15 is divided into two energy ranges with the lower and higher energy intensity and detected. The detected information is inputted to a picture processing section 21 to provide the low and high energy picture informations. The ratio of these picture informations are calculated to be displayed on a display section 22 as the contrast of a picture.