System characteristics of slice collimator for SPECT imaging and Monte Carlo simulation

The slice collimator for SPECT imaging has the advantage of high sensitivity and short detection time, so it will be wide applied to clinic medicine. In this paper, sensitivity, spatial resolution and signal noise ratio are discussed by physical model and Monte Carlo simulation. Images can be efficiently and intuitively distinguished by the data groupings of different radius that are put forward in this paper. This method is in favor of image reconstruction. (authors)