A Simulation Study of a Method to Reduce Positron Annihilation Spread Distributions Using a Strong Magnetic Field in Positron Emission Tomography

The positron trajectories have been three-dimensionally simulated using a Monte-Carlo method under various strength of the magnetic field. More than 5 tesla of the field confined the positrons effectively, resulting in increase of the probability of the annihilation within a limited small region, hence the higher spatial resolution in positron emission tomography.