Patent ID: 6529581
Filing Date: 2003-03-04
Classification: A61B,G01N,G01T

Abstract:
A radiation image taking apparatus comprising:a radiation irradiation device for irradiating radiation to a sample to be measured, a grid having a number of slits for allowing the radiation to pass therethrough, said slits being formed with a predetermined pitch for removing dispersion rays formed when the radiation passes through the sample to be measured, a radiation detecting device situated near the grid and having a plurality of detection pixels with a pitch for detecting the radiation passing through the slits of the grid, said detection pixels being arranged such that when the radiation is projected to the radiation detecting device through the grid, a length obtained by multiplying an odd-number to a half pitch of a projection image on the radiation detecting device through the slits of the grid is equal to the pitch of the detection pixels of the radiation detecting device, an operation device electrically connected to the radiation detecting device, and operating such that radiation detection signals obtained from the radiation detecting device is subjected to an equalizing process for every pixel group, each being formed of even number of the detection pixels continuously lined up in a pitch direction of the grid, and an image output device electrically connected to the operation device for receiving signals by the equalizing process and outputting a detected image.