Control software design of positron emission tomography based on real-time Linux

Based on the basic principle of real-time system analysis, a multi-task framework proposed for positron emission tomography equipment is used to develop positron emission tomography real-time control system. Realization of the software part is particularly detailed and then the system flow chart of the software part is introduced in the paper and these systems for scanner bed mechanism sub-system, rod source mechanism sub-system, septa mechanism sub-system and wobble mechanism sub-system by experiment are testified to complete planned control task, expected motion control precision and executed systems stability. Experiment results shows good reliability and real-time response of the proposed positron emission tomography real-time control system based on multi-task framework.