Anger camera dead time and its computer correction in dynamic radionuclide studies

Several methods used for the measurement of the camera's dead time are described. Two program variants were dra wn up to create histograms of the course of radioactivity in the selected zones of interest during dynamic studies with computer correction of dead time; these variants are that part of the system of computer and control programs which were written for the Clincom device. The first variant performs the correction on the basis of recorded count rate in the whole display, while the second variant uses an additional reference source positioned in a suitable place of the cameras field of vision. (author)