Abstract
Medical imaging devices have an important place in our lives in the diagnosis of diseases. Magnetic Resonance Imaging (MRI) device is used clinically and Magnetic Particle Imaging (MPI) device is being developed. Both imaging techniques use magnetic fields. The basic mechanism of MPI technique, one of these imaging methods, is based on visualizing the concentration distribution of superparamagnetic nanoparticles (SPION) used as tracer material. Magnetic fields required for MPI scanners are usually obtained from electromagnets. This causes MPI scanners to consume very high levels of energy. However, they provide advantages by increasing and decreasing magnetic field strengths and obtaining the image quickly. Permanent magnets, which are used as an alternative to electromagnets in the generation of magnetic fields, provide high flux densities and do not require any power source. They do not have any unwanted background noise and do not need a cooling system. However, the magnitude of the magnetic fields produced by permanent magnets is lower compared to the magnitude of the magnetic fields produced by electromagnetic magnets. In this design, the results of changing the parameters affecting the performance in Halbach and double magnet systems are mentioned.