Signal processing system for a gamma camera

摘要

A signal processor for use in a system including a gamma camera and a cathode ray tube type display device for displaying the distribution of a radioactive pharmaceutical on X-ray film. The system incorporates a sample-and-hold circuit for extending the duration of each output pulse produced by the camera upon impingement of a radioactive particle. The extended pulses cause the X-ray film to be exposed for a longer period of time by the display apparatus, thereby allowing beam current in the tube to be reduced for smaller spot size and improved resolution in the image.